function dollarsign(){
	var elements = new Array();
	for (var i = 0; i < arguments.length; i++){
		var element = arguments[i];
		if (typeof element == 'string') element = document.getElementById(element);
		if (arguments.length == 1) return element;
		elements.push(element);
	}
	return elements;
}

function hide(obj) {
	var el = dollarsign(obj);
	if(el) el.style.display = 'none';
}

function show(obj) {
	var el = dollarsign(obj);
	if(el)el.style.display = '';
}

function getElementsByClassName(classname,tag) {
	if(!tag) tag = "*";
	var nodes =  document.getElementsByTagName(tag);
	var regexp = new RegExp('\\b' + classname + '\\b');
	var classItems = new Array();
	for(var i=0; nodes[i]; i++) {
		var thisItem = nodes[i];
		if(regexp.test(thisItem.className)) classItems.push(thisItem);
	}
	return classItems;
}



//----This is he IE drop down  script-----//

startList = function() {
if (document.all && document.getElementById) {
navRoot = document.getElementById("nav");
for (i=0; i<navRoot.childNodes.length; i++) {
  node = navRoot.childNodes[i];
  if (node.nodeName=="LI") {
  node.onmouseover=function() {
  this.className+=" over";
    }
  node.onmouseout=function() {
  this.className=this.className.replace
      (" over", "");
   }
   }
  }
 }
}
window.onload=startList;
//----------------------------//