function getElementsByClass( searchClass, domNode, tagName) {
    if (domNode == null) domNode = document;
    if (tagName == null) tagName = '*';
    var el = new Array();
    var tags = domNode.getElementsByTagName(tagName);
    var tcl = " "+searchClass+" ";
    for(i=0,j=0; i<tags.length; i++) {
        var test = " " + tags[i].className + " ";
        if (test.indexOf(tcl) != -1)
            el[j++] = tags[i];
    }
    return el;
}


var baseURI = tinyMCE.baseURI.path;

tinyMCE.init({

	//-- general
    mode : "textareas",
    editor_selector : "advancedMCE",
    // plugins must be the same as in tinyMCE_GZ.init
    plugins : "template,media,paste,table,safari,claroimage,dailytube,texformula",
    theme : "advanced",
    browsers : "safari,msie,gecko,opera",
	directionality : text_dir,
	gecko_spellcheck : true,
	
	//-- url
    convert_urls : false,
    relative_urls : false,
    
    //-- advanced theme
    theme_advanced_buttons1 : "fontselect,fontsizeselect,formatselect,bold,italic,underline,strikethrough,separator,sub,sup,separator,undo,redo",
    theme_advanced_buttons2 : "cut,copy,paste,pasteword,separator,justifyleft,justifycenter,justifyright,justifyfull,separator,bullist,numlist,separator,outdent,indent,separator,forecolor,backcolor,separator,hr,link,unlink,claroimage,media,dailytube,template,code,texformula",
    theme_advanced_buttons3 : "tablecontrols,separator,help",
    theme_advanced_toolbar_location : "top",
    theme_advanced_toolbar_align : "left",
    theme_advanced_path : true,
    theme_advanced_statusbar_location : "bottom",
    theme_advanced_resizing : true,
    theme_advanced_resize_horizontal : false,
    theme_advanced_resizing_use_cookie : false,
    
    //-- cleanup/output
    apply_source_formatting : true,
    cleanup_on_startup : true,
    entity_encoding : "raw",
    extended_valid_elements : "a[name|href|target|title|onclick],img[class|src|border=0|alt|title|hspace|vspace|width|height|align|onmouseover|onmouseout|name],hr[class|width|size|noshade],font[face|size|color|style],span[class|align|style]",
    
    //-- Other functionnalities
    template_external_list_url : baseURI + "../../backends/template_list.php",
    
    // setup
    setup : function(ed) {
        // Change Tex code to Tex img
        ed.onBeforeSetContent.add(function(ed, o) {
            o.content = o.content.replace(/\[tex\](.+?)\[\/tex\]/gi, '<img src="'+ mimeTexURL +'?$1" border="0" align="absmiddle" class="latexFormula" alt="$1" />');
        });
        // Change Tex img to Tex code
        ed.onGetContent.add(function(ed, o) {
            var content = ed.dom.getRoot();
            var texFormula = $(content).find('img.latexFormula');
            $.each(texFormula, function() {
                var src = $(this).attr('src');
                var src = src.replace(/(.+?)\?(.+?)/gi, '$2');
                var latexTag = '[tex]' + unescape(src) + '[/tex]';
                $(this).replaceWith(latexTag);
            });
            $(content).find('img.latexFormula').replaceWith(texFormula);
        });        
    }
});
