function ge(strId){
	return document.getElementById(strId);
}

function getElementsByClassName(oElm, strTagName, strClassName){
    var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
    var arrReturnElements = new Array();
    strClassName = strClassName.replace(/\-/g, "\\-");
    var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
    var oElement;
    for(var i=0; i<arrElements.length; i++){
        oElement = arrElements[i];      
        if(oRegExp.test(oElement.className)){
            arrReturnElements.push(oElement);
        }   
    }
    return (arrReturnElements)
}

function addClassName(oElm, strClassName){
	var strCurrentClass = oElm.className;
	if(!new RegExp(strClassName, "i").test(strCurrentClass)){
		oElm.className = strCurrentClass + ((strCurrentClass.length > 0)? " " : "") + strClassName;
	}
}

function removeClassName(oElm, strClassName){
	var oClassToRemove = new RegExp((strClassName + "\s?"), "i");
	oElm.className = oElm.className.replace(oClassToRemove, "").replace(/^\s?|\s?$/g, "");
}

if (!window.XMLHttpRequest) {
    window.XMLHttpRequest = function() {
        var types = [
                'Microsoft.XMLHTTP',
                'MSXML2.XMLHTTP.5.0',
                'MSXML2.XMLHTTP.4.0',
                'MSXML2.XMLHTTP.3.0',
                'MSXML2.XMLHTTP'
                ];

        for (var i = 0; i < types.length; i++) {
            try {
                return new ActiveXObject(types[i]);
            }
            catch(e) {}
        }

        return false; // XMLHttpRequest not supported
    }
}

function is_all_ws(nod) {
    // Use ECMA-262 Edition 3 String and RegExp features
    return !(/[^\t\n\r ]/.test(nod.data));
}

function is_ignorable(nod) {
    return ( nod.nodeType == 8) || // A comment node
         ( (nod.nodeType == 3) && is_all_ws(nod) ); // a text node, all ws
}

function sfHover(oElm) {
	var sfEls = oElm.getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}