function selectallhosts() { $('.vnodessel').attr('checked', true); } function deselectallhosts() { $('.vnodessel').attr('checked', false); } function setpreset(form, select) { presetvalue = select.options[select.selectedindex].value; parts = presetvalue.split('/'); form.elements['variable'].value = parts[0]; form.elements['subkey'].value = parts[1]; }