aj
/
chamilo-lms2


			
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							<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html xmlns="http://www.w3.org/1999/xhtml">
<!-- Author Dirk Datzert 2007
	Patches and improvements by Juan Carlos Raña Trabado 2008 and Ivan Tcholakov 2009 -->
	<head>
		<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
		<meta name="robots" content="noindex, nofollow" />
		<script src="../../dialog/common/fck_dialog_common.js" type="text/javascript"></script>
		<script type="text/javascript" src="jquery.js"></script>
		<script type="text/javascript">

var oEditor = window.parent.InnerDialogLoaded() ;
var FCKLang = oEditor.FCKLang ;
var FCK = oEditor.FCK ;
var FCKConfig = oEditor.FCKConfig ;
var FCKTools = oEditor.FCKTools ;
var FCKBrowserInfo = oEditor.FCKBrowserInfo ;

//Set the language direction.
window.document.dir = FCKLang.Dir ;

// Initialization of the URLs to be used.
var mimetex_url = FCKConfig.MimetexUrl ;
var mimetex_cgi = mimetex_url + "? \\Large " ;
var preview_cgi = mimetex_cgi + "\\nocach " ;
var result_cgi  = mimetex_cgi ;
var img_tag = true ;

// FCKEditor

// We have to avoid javascript errors if some language variables have not been defined.
FCKLang['DlgMimeTeXSymbols'] = FCKLang['DlgMimeTeXSymbols'] ? FCKLang['DlgMimeTeXSymbols'] : 'Symbols' ;
FCKLang['DlgMimeTeXCalendar'] = FCKLang['DlgMimeTeXCalendar'] ? FCKLang['DlgMimeTeXCalendar'] : 'Calendar' ;
FCKLang['DlgMimeTeXNumeric'] = FCKLang['DlgMimeTeXNumeric'] ? FCKLang['DlgMimeTeXNumeric'] : 'Numeric' ;
FCKLang['DlgMimeTeXLowerGreeks'] = FCKLang['DlgMimeTeXLowerGreeks'] ? FCKLang['DlgMimeTeXLowerGreeks'] : 'Lower Greeks' ;
FCKLang['DlgMimeTeXUpperGreeks'] = FCKLang['DlgMimeTeXUpperGreeks'] ? FCKLang['DlgMimeTeXUpperGreeks'] : 'Upper Greeks' ;
FCKLang['DlgMimeTeXOperators'] = FCKLang['DlgMimeTeXOperators'] ? FCKLang['DlgMimeTeXOperators'] : 'Operators' ;
FCKLang['DlgMimeTeXFunctions'] = FCKLang['DlgMimeTeXFunctions'] ? FCKLang['DlgMimeTeXFunctions'] : 'Functions' ;
FCKLang['DlgMimeTeXTrigonometry'] = FCKLang['DlgMimeTeXTrigonometry'] ? FCKLang['DlgMimeTeXTrigonometry'] : 'Trigonometry' ;
FCKLang['DlgMimeTeXAnalysis'] = FCKLang['DlgMimeTeXAnalysis'] ? FCKLang['DlgMimeTeXAnalysis'] : 'Analysis' ;
FCKLang['DlgMimeTeXMoreSamples'] = FCKLang['DlgMimeTeXMoreSamples'] ? FCKLang['DlgMimeTeXMoreSamples'] : 'More Samples' ;

switch ( oEditor.FCKLanguageManager.DefaultLanguage )
{
	case 'es' :
		istallation_file_name = 'installation_guide_es_ES.html' ;
		break ;
	default :
		istallation_file_name = 'installation_guide.html' ;
		break ;
}

FCKLang['DlgMimeTeXSeeInstallationManual'] = FCKLang['DlgMimeTeXSeeInstallationManual']
	? FCKLang['DlgMimeTeXSeeInstallationManual'] : 'To resolve the problem, see the Chamilo LMS %1installation guide%2.' ;
if ( FCKConfig['UserIsPlatformAdmin'] || FCKConfig['UserIsCourseAdmin'] )
{
	FCKLang['DlgMimeTeXSeeInstallationManual'] = FCKLang['DlgMimeTeXSeeInstallationManual'].replace( /%1/g,
		'<a href="../../../../../../../documentation/' + istallation_file_name + '#9._Mathematical_formulas" target="_blank">' ).replace( /%2/g, '<\/a>' ) ;
}
else
{
	FCKLang['DlgMimeTeXSeeInstallationManual'] = FCKLang['DlgMimeTeXSeeInstallationManual'].replace( /%1/g, '' ).replace( /%2/g, '' ) ;
}

// look for a MATH-tag
var eSelected = FCK.Selection.MoveToAncestorNode( 'MATH' ) ;

// else look for an IMG-tag
if ( !eSelected )
{
	eSelected = FCK.Selection.MoveToAncestorNode( 'IMG' ) ;
}

// End FCKEditor

function setSelRange( inputEl, selStart, selEnd )
{
	if ( inputEl.setSelectionRange )
	{
		inputEl.focus() ;
		inputEl.setSelectionRange( selStart, selEnd ) ;
	}
	else if ( inputEl.createTextRange )
	{
		var range = inputEl.createTextRange() ;
		range.collapse(true) ;
		range.moveEnd( 'character', selEnd ) ;
		range.moveStart( 'character', selStart ) ;
		range.select();
	}
}

function insertAtCursor( myField, myValue )
{
	// IE support
	if ( document.selection )
	{
		myField.focus() ;
		sel = document.selection.createRange() ;
		sel.text = myValue;
	}
	// MOZILLA/NETSCAPE support
	else if ( myField.selectionStart || myField.selectionStart == '0' )
	{
		var startPos = myField.selectionStart ;
		var endPos = myField.selectionEnd ;
		myField.value = myField.value.substring( 0, startPos )
			+ myValue
			+ myField.value.substring( endPos, myField.value.length ) ;
		setSelRange( myField, startPos + myValue.length, endPos + myValue.length ) ;
	}
	else
	{
		myField.value += myValue ;
	}
}

function cursorHand( obj )
{
	$(obj).css( 'cursor', 'pointer' ) ;
}

function cursorDefault( obj )
{
	$(obj).css( 'cursor', 'default' ) ;
}

function formulaPreview()
{
	if ( document.pastemath.formula.value.length > 0 )
	{
		$( "#preview" ).css( 'display', 'block' ) ;
		$( "#formula_preview" ).attr( 'src', preview_cgi + document.pastemath.formula.value ) ;
	}
	else
	{
		$( "#preview" ).css( 'display', 'none' ) ;
	}
}

function addFormula( expr )
{
	if ( document.pastemath.formula.value.length > 0 )
	{
          expr = ' ' + expr ;
	}
	textField = document.getElementById( "formula" ) ;
	insertAtCursor( textField, expr ) ;
	formulaPreview() ;
}

// Append a mimetex image to the last DIV of the Helper-DIV
function appendHelper( expr, alt )
{
	add_expr = expr.replace( /\\/g, "\\\\" ) ;
	src_expr = mimetex_cgi + expr ;

	$( "#helpers/div:last/p:last" ).append( "<img class=helper title='" + alt + "' alt='" + alt + "' onMouseOver='javascript: cursorHand(this);' onMouseOut='javascript: cursorDefault(this);' onClick='javascript: addFormula( \"" + add_expr + "\" ) ;' src='" + src_expr + "'>" ) ;
}

function htmlHelper( html )
{
	$("#helpers/div:last/p:last").append(html);
}

function addHelper( id, title )
{
	$( "#helpers" ).append( "<div id='" + id + "' class=helper>" + title + "<p id='" + id + "_pane' class='off pane' /></div>" ) ;
}

// Init helper on document ready
$(function () {

		// FCKEditor

		// First of all, translate the dialog box texts
		oEditor.FCKLanguageManager.TranslatePage( document ) ;

		if ( !FCKConfig.IsMimetexInstalled )
		{
			ShowE( 'content', false ) ;
			ShowE( 'mimetex_error_message', true ) ;
			return ;
		}

		ShowE( 'content', true ) ;

		// End FCKEditor

		////jc
		addHelper( "symbols1", FCKLang["DlgMimeTeXSymbols"] + " 1" ) ;
		//appendHelper( "\\-", "-" ) ; //jc
		appendHelper( "\-", "-" ) ;
		appendHelper( "\\cdot",  "cdot" ) ;
		appendHelper( "\\times", "times" ) ;
		appendHelper( "\\ast", "ast" ) ;
		appendHelper( "\\div", "div" ) ;
		appendHelper( "\\diamond", "diamond" ) ;
		appendHelper( "\\pm", "pm" ) ;
		appendHelper( "\\mp", "mp" ) ;
		appendHelper( "\\oplus", "oplus" ) ;
		appendHelper( "\\ominus", "ominus" ) ;
		appendHelper( "\\otimes", "otimes" ) ;
		appendHelper( "\\oslash", "oslash" ) ;
		appendHelper( "\\odot", "odot" ) ;
		appendHelper( "\\bigcirc", "bigcirc" ) ;
		appendHelper( "\\circ", "circ" ) ;
		appendHelper( "\\bullet", "bullet" ) ;
		appendHelper( "\\asymp", "asymp" ) ;
		appendHelper( "\\equiv", "equiv" ) ;
		appendHelper( "\\subseteq", "subseteq" ) ;
		appendHelper( "\\supseteq", "supseteq" ) ;
		appendHelper( "\\leq", "leq" ) ;
		appendHelper( "\\geq", "geq" ) ;
		appendHelper( "\\preceq", "preceq" ) ;
		appendHelper( "\\succeq", "succeq" ) ;
		appendHelper( "\\sim", "sim" ) ;
		appendHelper( "\\approx", "approx" ) ;
		appendHelper( "\\subset", "subset" ) ;
		appendHelper( "\\supset", "supset" ) ;
		appendHelper( "\\ll", "ll" ) ;
		appendHelper( "\\gg", "gg" ) ;
		appendHelper( "\\prec", "prec" ) ;
		appendHelper( "\\succ", "succ" ) ;
		appendHelper( "\\leftar", "leftar" ) ;
		appendHelper( "\\rightar", "rightar" ) ;
		appendHelper( "\\uparr", "uparr" ) ;
		appendHelper( "\\downar", "downar" ) ;
		appendHelper( "\\leftrightar", "leftrightar" ) ;
		appendHelper( "\\near", "near" ) ;
		appendHelper( "\\sear", "sear" ) ;
		appendHelper( "\\simeq", "simeq" ) ;
		appendHelper( "\\Leftar", "Leftar" ) ;
		appendHelper( "\\Rightar", "Rightar" ) ;
		appendHelper( "\\Upar", "Upar" ) ;
		appendHelper( "\\Downar", "Downar" ) ;
		appendHelper( "\\Leftrightar", "Leftrightar" ) ;
		appendHelper( "\\nwar", "nwar" ) ;
		appendHelper( "\\swar", "swar" ) ;
		appendHelper( "\\propto", "propto" ) ;
		appendHelper( "\\prime", "prime" ) ;
		appendHelper( "\\infty", "infty" ) ;
		appendHelper( "\\in", "in" ) ;
		appendHelper( "\\ni", "ni" ) ;
		appendHelper( "\\triangle", "triangle" ) ;
		appendHelper( "\\bigtriangledo", "bigtriangledo" ) ;
		appendHelper( "\/", "/" ) ; //no va es la barra normal inclinada a la derecha
		appendHelper( "\\forall", "forall" ) ;
		appendHelper( "\\exists", "exists" ) ;
		appendHelper( "\\neg", "neg" ) ;
		appendHelper( "\\emptyset", "emptyset" ) ;
		appendHelper( "\\Re", "Re" ) ;
		appendHelper( "\\Im", "Im" ) ;
		appendHelper( "\\top", "top" ) ;
		appendHelper( "\\bot", "bot" ) ;
		appendHelper( "\\aleph", "aleph" ) ;
		appendHelper( "\\calA", "calA" ) ;
		appendHelper( "\\calZ", "calZ" ) ;
		appendHelper( "\\cup", "cup" ) ;
		appendHelper( "\\cap", "cap" ) ;
		appendHelper( "\\uplus", "uplus" ) ;
		appendHelper( "\\wedge", "wedge" ) ;
		appendHelper( "\\vee", "vee" ) ;
		appendHelper( "\\vdash", "vdash" ) ;
		appendHelper( "\\dashv", "dshv" ) ;
		appendHelper( "\\lfloor", "lfloor" ) ;
		appendHelper( "\\rfloor", "rfloor" ) ;
		appendHelper( "\\lceil", "lceil" ) ;
		appendHelper( "\\rceil", "rceil" ) ;
		appendHelper( "\\lbrace", "lbrace" ) ;
		appendHelper( "\\rbrace", "rbrace" ) ;
		appendHelper( "\\langle", "langle" ) ;
		appendHelper( "\\rangle", "rangle" ) ;
		appendHelper( "\\mid", "mid" ) ;
		appendHelper( "\\parallel", "parallel" ) ;
		appendHelper( "\\updownar", "updownar" ) ;
		appendHelper( "\\Updownar", "Updownar" ) ;
		appendHelper( "\\setminus", "setminus" ) ;
		appendHelper( "\\wr", "wr" ) ;
		appendHelper( "\\surd", "surd" ) ;
		appendHelper( "\\amalg", "amalg" ) ;
		appendHelper( "\\nabla", "nabla" ) ;
		appendHelper( "\\int", "int" ) ;
		appendHelper( "\\sqcup", "sqcup" ) ;
		appendHelper( "\\sqcap", "sqcap" ) ;
		appendHelper( "\\sqsubseteq", "sqsubseteq" ) ;
		appendHelper( "\\sqsupseteq", "sqsupseteq" ) ;
		appendHelper( "\\S", "S" ) ;
		appendHelper( "\\dag", "dag" ) ;
		appendHelper( "\\ddag", "ddag" ) ;
		appendHelper( "\\P", "P" ) ;
		appendHelper( "\\clubsuit", "clubsuit" ) ;
		appendHelper( "\\Diamond", "Diamond" ) ;
		appendHelper( "\\Heart", "Heart" ) ;
		appendHelper( "\\spadesuit", "spadesuit" ) ;


		addHelper( "symbols2", FCKLang["DlgMimeTeXSymbols"] + " 2" ) ;
		appendHelper( "\\leftharpoonup", "leftharpoonup" ) ;
		appendHelper( "\\leftharpoondo",  "leftharpoondo" ) ;
		appendHelper( "\\rightharpoonup", "rightharpoonup" ) ;
		appendHelper( "\\rightharpoondo", "rightharpoondo" ) ;
		appendHelper( "\\triangleright", "triangleright" ) ;
		appendHelper( "\\triangleleft", "triangleleft" ) ;
		appendHelper( "\\star", "star" ) ;
		appendHelper( "\\partial", "partial" ) ;
		appendHelper( "\\flat", "flat" ) ;
		appendHelper( "\\natural", "natural" ) ;
		appendHelper( "\\sharp", "sharp" ) ;
		appendHelper( "\\smile", "smile" ) ;
		appendHelper( "\\frown", "frown" ) ;
		appendHelper( "\\ell", "ell" ) ;
		appendHelper( "\\imath", "imath" ) ;
		appendHelper( "\\jmath", "jmath" ) ;
		//appendHelper( "\\vp", "vp" ) ;
		//appendHelper( "\\vec", "vec" ) ;
		appendHelper( "\\ss", "ss" ) ;
		appendHelper( "\\ae", "ae" ) ;
		appendHelper( "\\oe",  "oe" ) ;
		appendHelper( "\\AE", "AE" ) ;
		appendHelper( "\\OE", "OE" ) ;
		appendHelper( "\\moo", "moo" ) ;
		appendHelper( "\\Lbag", "Lbag" ) ;
		appendHelper( "\\Rbag", "Rbag" ) ;
		appendHelper( "\\lightning", "lightning" ) ;
		appendHelper( "\\llbracket", "llbracket" ) ;
		appendHelper( "\\rrbracket", "rrbracket" ) ;
		appendHelper( "\\subsetpluseq", "subsetpluseq" ) ;
		appendHelper( "\\supsetpluseq", "supsetpluseq" ) ;
		appendHelper( "\\Yup", "Yup" ) ;
		appendHelper( "\\Ydown", "Ydown" ) ;
		//appendHelper( "\\cyr A", "cyr A" ) ;
		//appendHelper( "\\cyr a", "cyr a" ) ;
		//appendHelper( "\\cyr Dj", "cyr Dj" ) ;
		//appendHelper( "\\cyr Zh", "cyr Zh" ) ;

		addHelper( "calendar", FCKLang["DlgMimeTeXCalendar"] ) ;
		appendHelper( "\\blue\\normalsize\\calendar", "" ) ;
    	appendHelper( "\\reverse\\opaque\\red\\normalsize\\calendar[2008,9,11]", "" ) ;
		appendHelper( "\\today",  "" ) ;
		appendHelper( "\\green\\today[2]",  "" ) ;
		appendHelper( "\\red\\today[3]",  "" ) ;

		////jc end

		addHelper( "numeric", FCKLang["DlgMimeTeXNumeric"] ) ;
		var al_l = "abcdefghijklmnopqrstuvwxyz" ;
		var al_u = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" ;
		var num  = "0123456789" ;
		var alnum = al_u + num ;

		for ( var i = 0, n = alnum.length ; i < n ; i++ )
		{
			appendHelper( "\\mathbb{" + alnum.substr( i, 1 ) + "}", "math bold " + alnum.substr( i, 1 ) ) ;
		}
		htmlHelper( "<br />" ) ;
		for ( var i = 0, n = al_u.length ; i < n ; i++ )
		{
			appendHelper( "\\mathcal{" + al_u.substr( i, 1 ) + "}", "math cal " + al_u.substr( i, 1 ) ) ;
		}
		htmlHelper( "<br />" ) ;
		for ( var i = 0, n = al_u.length ; i < n ; i++ )
		{
			appendHelper( "\\mathfrak{" + al_u.substr( i, 1 ) + "}", "math frak " + al_u.substr( i, 1 ) ) ;
		}

		addHelper( "lowergreek", FCKLang["DlgMimeTeXLowerGreeks"] ) ;
		appendHelper( "\\alpha", "lower alpha" ) ;
		appendHelper( "\\beta",  "lower beta" ) ;
		appendHelper( "\\delta", "lower delta" ) ;
		appendHelper( "\\epsilon", "lower epsilon" ) ;
		appendHelper( "\\varepsilon", "lower varepsilon" ) ;
		appendHelper( "\\eta", "lower eta" ) ;
		appendHelper( "\\gamma", "lower gamma" ) ;
		appendHelper( "\\lambda", "lower lambda" ) ;
		appendHelper( "\\mu", "lower mu" ) ;
		appendHelper( "\\nu", "lower nu" ) ;
		appendHelper( "\\omega", "lower omega" ) ;
		appendHelper( "\\rho", "lower rho" ) ;
		appendHelper( "\\varrho", "lower varrho" ) ;
		appendHelper( "\\sigma", "lower sigma" ) ;
		appendHelper( "\\varsigma", "lower varsigma" ) ;
		appendHelper( "\\tau", "lower tau" ) ;
		appendHelper( "\\phi", "lower phi" ) ;
		appendHelper( "\\psi", "lower psi" ) ;
		appendHelper( "\\chi", "lower chi" ) ;
		appendHelper( "\\theta", "lower theta" ) ;
		appendHelper( "\\kappa", "lower kappa" ) ;
		appendHelper( "\\xi", "lower xi" ) ;
		appendHelper( "\\zeta", "lower zeta" ) ;

		addHelper( "uppergreek", FCKLang["DlgMimeTeXUpperGreeks"] ) ;
		appendHelper( "\\Delta", "upper delta" ) ;
		appendHelper( "\\Gamma", "upper gamma" ) ;
		appendHelper( "\\Lambda", "upper lambda" ) ;
		appendHelper( "\\Theta", "upper theta" ) ;
		appendHelper( "\\Pi", "upper pi" ) ;
		appendHelper( "\\Phi", "upper phi" ) ;
		appendHelper( "\\Psi", "upper psi" ) ;
		appendHelper( "\\Omega", "upper omega" ) ;
		appendHelper( "\\Sigma", "upper sigma" ) ;
		appendHelper( "\\Xi", "upper xi" ) ;
		appendHelper( "\\Upsilon", "upper upsilon" ) ;

		addHelper( "operators", FCKLang["DlgMimeTeXOperators"] ) ;
		appendHelper( "\\frac{x}{y}", "" ) ;
		appendHelper( "x^{n}", "" ) ;
		appendHelper( "x_{n}", "" ) ;
		appendHelper( "\\sqrt {x}", "" ) ;
		appendHelper( "\\sqrt[3]{x}", "" ) ;
		appendHelper( "\\sqrt[4]{x}", "" ) ;
		appendHelper( "\\vec {x}", "" ) ;

		addHelper( "functions", FCKLang["DlgMimeTeXFunctions"] ) ;
		appendHelper( "\\ln", "ln" ) ;
		appendHelper( "\\log", "log" ) ;
		appendHelper( "\\exp", "exp" ) ;
		appendHelper( "\\arg", "arg" ) ;
		appendHelper( "\\Re", "Re" ) ;
		appendHelper( "\\Im", "Im" ) ;

		addHelper( "trigonometry", FCKLang["DlgMimeTeXTrigonometry"] ) ;
		appendHelper( "\\sin", "sin" ) ;
		appendHelper( "\\cos", "cos" ) ;
		appendHelper( "\\tan", "tan" ) ;
		appendHelper( "\\cot", "cot" ) ;
		appendHelper( "\\arcsin", "arcsin" ) ;
		appendHelper( "\\arccos", "arccos" ) ;
		appendHelper( "\\arctan", "arctan" ) ;
		appendHelper( "\\sinh", "sinh" ) ;
		appendHelper( "\\cosh", "cosh" ) ;
		appendHelper( "\\tanh", "tanh" ) ;
		appendHelper( "\\coth", "coth" ) ;

		addHelper( "analysis", FCKLang["DlgMimeTeXAnalysis"] ) ;
		appendHelper( "\\int _{-\\infty}^{x}\\mathrm{d}t", "integral dt from -infinite to x" ) ;
		appendHelper( "\\sum_{k=1}^{+\\infty}", "sum from k=1 to +infinite" ) ;
		appendHelper("\\frac{\\mathrm{d} f(x,y)}{\\mathrm{d}x}", "" ) ;
		appendHelper( "\\frac{\\partial  f(x,y)}{\\partial x}", "" ) ;
		appendHelper( "\\lim _{\\small{x\\to +\\infty}}", "" ) ;

		////jc
		addHelper( "moresamples", FCKLang["DlgMimeTeXMoreSamples"] ) ;

		appendHelper( "\\\large\\begin{array}{c.c|c}       a_1&a_2&a_3\\\\\\hdash b_1&b_2&b_3\\\\\\hline c_1&c_2&c_3\\end{array}", "" ) ;
		appendHelper( "\\large e^x=\\sum_{n=0}^\\infty\\frac{x^n}{n!}", "" ) ;
		appendHelper( "\\large      e^x=\\lim_{n\\to\\infty} \\left(1+\\frac xn\\right)^n", "" ) ;
		appendHelper( "\\large     \\left( \\begin{array}{GC+30}            \\cos\\frac\\theta2 & i\\,\\sin\\frac\\theta2\\\            i\\,\\sin\\frac\\theta2 & \\cos\\frac\\theta2 \\end{array} \\right)     \\left( \\begin{array}            z & x_{\\tiny-} \\\ x_{\\tiny+} & -z \\end{array} \\right)     \\hfill{300}\\text{\\normalsize Example 1}", "" ) ;
		appendHelper( "\\large x=\\frac{-b\\pm\\sqrt{b^2-4ac}}{2a}", "" ) ;
		appendHelper( "\\large f^\\prime(x)\\ =         \\lim_{\\Delta x\\to0}\\frac{f(x+\\Delta x)-f(x)}{\\Delta x}", "" ) ;
		appendHelper( "\\large\\hspace{5}\\unitlength{1}    \\picture(175,100){ (50,50){\\circle(100)}    (1,50){\\overbrace{\\line(46)}^{4$\\;\\;a}}    (52,50){\\line(125)} (50,52;115;2){\\mid} (52,55){\\longleftar[60]}    (130,56){\\longrightar[35]} (116,58){r} (c85,50;80;2){\\bullet}    (c85,36){\\large-q} (c165,36){\\large q}    (42,29){\\underbrace{\\line(32)}_{\\small a^2/r\\;\\;\\;}} }",  "" ) ;
		appendHelper( "\\large\\varepsilon=\\sum_{i=1}^{n-1}    \\frac1{\\Delta x}\\int_{x_i}^{x_{i+1}}\\left\\{\\frac1{\\Delta x}\\big[    (x_{i+1}-x)y_i^\\ast+(x-x_i)y_{i+1}^\\ast\\big]-f(x)\\right\\}^2dx",  "" ) ;
		appendHelper( "\\large\\frac{dv^m}{ds}=-\\Gamma^m_{oo}v^{o^2}    =-g^{mn}\\Gamma_{noo}v^{o^2}=\\frac12g^{mn}g_{oo,n}v^{o^2}",  "" ) ;
		appendHelper( "\\large f=b_o+\\frac{a_1}{b_1+    \\frac{a_2}{b_2+\\frac{a_3}{b_3+a_4}}}",  "" ) ;
		appendHelper( "\\large\\tilde y=\\left\\{    {\\ddot x\\text{ if \\vec x odd}\\atop\\hat{\\,\\bar x+1}\\text{ if even}}\\right.",  "" ) ;
		appendHelper( "\\large\\overbrace{a,...,a}^{\\text{k a^,s}},    \\underbrace{b,...,b}_{\\text{l b^,s}}\\hspace{10}    \\large\\underbrace{\\overbrace{a...a}^{\\text{k a^,s}},    \\overbrace{b...b}^{\\text{l b^,s}}}_{\\text{k+l elements}}",  "" ) ;

		/*
		appendHelper( "\\large\\scr{J}^{i0}=+\\frac i2         \\left[\\begin{array}{cc}\\sigma_i&0\\\0&-\\sigma_i\\end{array}\\right]         \\hspace{10}\\scr{J}^{ij}=\\frac12\\varepsilon_{ijk}         \\left[\\begin{array}{cc}\\sigma_k&0\\\0&\\sigma_k\\end{array}\\right]",  "" ) ;
		*/

		appendHelper( "\\small\\hspace{10}\\unitlength{.75}    \\picture(120,220){ (60,200){\\circle(120,40)} (0,20){\\line(0,180)}    (5,189;0,-30){\\pict(110,20){(c20,10;70;2){    \\pict(40,20){(20,10){\\circle(40,20)}(c10,10)+(c30,10)-}} } }    (119,20){\\line(0,180)} (60,20){\\circle(120,40;34)}}",  "" ) ;
		appendHelper( "\\normalsize\\unitlength{.6}\\picture(100){   (50,50){\\circle(99)} (20,55;50,0;2){\\fs{+1}\\hat\\bullet} (50,40){\\bullet}   (50,35){\\circle(50,25;34)} (50,35){\\circle(50,45;34)}}", "" ) ;
		////jc end

		$('#helpers > div').hover(function() {
				$(this).find('p').fadeIn('fast' ) ;
			}, function() {
				$(this).find('p').fadeOut('fast' ) ;
			} ) ;

		// FCKEditor

		LoadSelected() ;

		// Show the "Ok" button.
		window.parent.SetOkButton( true ) ;

		SelectField( 'formula' ) ;

		// End FCKEditor
    } ) ;


// FCKEditor

function LoadSelected()
{
	if ( !eSelected )
	{
		return ;
	}

	if ( eSelected.tagName == 'MATH' )
	{
		img_tag = false ;
		document.pastemath.formula.value = eSelected.firstChild.nodeValue ;
		formulaPreview() ;
	}
	else if ( eSelected.tagName == 'IMG' )
	{
		img_tag = true ;
		// We will read the formula from the url, because the back slash is escaped with %5C,
		// so the re is no risk the formula to be damaged by the php stripslashes(...) function.
		//document.pastemath.formula.value = eSelected.alt ;
		var formula = '' ;
		var src = eSelected.src.toString() ;
		var formula_start = src.indexOf( '?' ) ;
		if ( formula_start != -1 )
		{
			formula = src.substr( formula_start + 1 ).replace(/%5C/gi,'\\').replace(/%20/g,' ') ;
			formula = formula.Trim() ;
			if ( formula.indexOf( '\\Large' ) == 0 )
			{
				formula = formula.substr( 6 ) ;
			}
			formula = formula.Trim() ;
		}
		document.pastemath.formula.value = formula ;
		//
		formulaPreview() ;
	}
	else
	{
		eSelected == null ;
	}
}

function Ok()
{
	result = document.pastemath.formula.value ;
	if( result.length > 0 ) {
		FCK.Focus() ;
		if ( eSelected )
		{
			FCK.Selection.SelectNode( eSelected ) ;
		}

		if ( img_tag )
		{
			//solved a problem with stripslashes by Christophe Lefevre
			var img_src = result_cgi + result ;
			FCK.InsertHtml( '<img src="' + img_src.replace(/\\/g, "%5C") + '" title="' + result + '" alt="' + result + '" />' ) ;
		}
		else
		{
			FCK.InsertHtml( '<math>' + result + '</math>' ) ;
		}
	}
	window.close() ;
	return true ;
}

// End FCKEditor

		</script>

		<script type="text/javascript">
document.write( FCKTools.GetStyleHtml( GetCommonDialogCss() ) ) ;
		</script>

		<style type="text/css">
			body, td, input, textarea, select, label { font-family: Arial, Verdana, Geneva, helvetica, sans-serif; font-size: 11px; }
		</style>

		<!--solved a problem with iexplorer 7 by jc -->
		<style type="text/css">
div.helpers
{
	position: absolute;
	max-width: 360px;
	width:expression(document.body.clientWidth > 360? "360px": "auto" );
	overflow:auto;
}
li.helpers
{
	margin: 3px;
	list-style-type: none;
}
.helper
{
	margin: 3px;
}
.off
{
	display: none;
}
.pane
{
	margin: 1px;
	border: 1px solid black;
}
.formula
{
	position: absolute;
	left: 375px;
}
#mimetex_error_message
{
	font-size: 13px;
}
		</style>
	</head>
	<body>
		<div id="content" style="display: none;">
			<div class="helpers">
				<b><span fckLang="DlgMimeTeXHelpers">Helpers:</span></b>
				<div id="helpers">
				</div>
			</div>
			<div class="formula">
				<div style="margin-top: 0px; margin-bottom: 10px; margin-left: 0px; margin-right: 0px; padding: 0px;">
				<b><span fckLang="DlgMimeTeXFormula">Formula:</span></b>
				</div>
				<div  style="margin: 0px; padding: 0px;">
				<form name="pastemath" id="pastemath">
					<textarea id="formula" name="formula" cols="60" rows="8" onKeyUp="javascript: formulaPreview();" style="width: 370px;"></textarea>
				</form>
				</div>
				<div align="right"><a href="http://www.forkosh.com/mimetex.html" target="_blank" style="left:auto"><span fckLang="DlgMimeTeXManual">Manual</span></a></div>
				<div id="preview" class=off>
					<div style="margin-top: 0px; margin-bottom: 10px; margin-left: 0px; margin-right: 0px; padding: 0px;">
					<b><span fckLang="DlgMimeTeXPreview">Preview:</span></b>
					</div>
					<div style="margin: 0px; padding: 0px;">
					<img src="" alt="Image" name="formula_preview" id="formula_preview" align="middle"/>
					</div>
				</div>
			</div>
		</div>
		<div id="mimetex_error_message" style="display: none; text-align: center; padding-top: 100px;">
			<p><span fckLang="DlgMimeTeXEditorNotAvailable">The math formula editor is not available.</span></p>
			<p><span fckLang="DlgMimeTeXNotInstalled">A software service (MimeTeX) has not been installed on your server or it is not accessible.</span></p>
			<p><span fckLang="DlgMimeTeXSeeInstallationManual">To resolve the problem, see the Chamilo LMS installation guide.</span></p>
			<p><a href="http://www.forkosh.com/mimetex.html" target="_blank"><span fckLang="DlgMimeTeXManual">Manual</span></a></p>
		</div>
	</body>
</html>