function getElement(id) { 
	return document.all ? document.all(id) : 
	document.getElementById ? document.getElementById(id) : 
	document.layers ? document.layers[id] : null; 
}
function vislayeron(id) { 
	var el = parent.getElement(id); 
	if (!el) return; 
	if (el.style) {el.style.visibility = 'visible'; el.style.display = '';}
	else if (el.visibility) {el.visibility = 'show';}
} 
function vislayeroff(id) { 
	var el = getElement(id); 
	if (!el) return; 
	if (el.style){ el.style.visibility = 'hidden'; el.style.display = 'none';}
	else if (el.visibility) {el.visibility = 'hide';}
}
function removeSelects(){
	aSelectElements=document.getElementsByTagName('select');
	for (var i = 0; i < aSelectElements.length; i++) { 
		aSelectElements[i].style.visibility = 'hidden'; 
	}
}
function showSelects(){
	aSelectElements=document.getElementsByTagName('select');
	for (var i = 0; i < aSelectElements.length; i++) { 
		aSelectElements[i].style.visibility = 'visible'; 
	}
}
function resetallNav() {
	showSelects();
}
function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	} else {
		window.onload = function() {
		if (oldonload) {
			oldonload();
		}
		func();
		}
	}
}
function displayLoading(){
	var divLoadBkgd = getElement("divLoadingBkgd");
	y = document.body.offsetHeight;
	divLoadBkgd.style.height = 1700;
	divLoadBkgd.style.zIndex = 998;
	divLoadBkgd.style.visibility = "visible";
}
function button_Click(id){
	var el = getElement(id);
	var btnElementClass=el.className;
	if(btnElementClass.indexOf("On")==-1)
	{
		if(btnElementClass.indexOf(" ")>-1)	el.className=btnElementClass.replace(btnElementClass.substring(0,btnElementClass.indexOf(" ")),btnElementClass.substring(0,btnElementClass.indexOf(" "))+"On ");
		else el.className=btnElementClass+"On";
		return true;
	}
	else
		 return false;	
}
function button_Raise(id){
	var el = getElement(id);
	var btnElementClass=el.className;
	if(btnElementClass.indexOf("On") > -1){
		 el.className=btnElementClass.substring(0,btnElementClass.length-2);
 	}
}