//Load Event
	function addLoadEvent(func) {
		var oldonload = window.onload;
		if (typeof window.onload != 'function') {
			window.onload = func;
		} else {
			window.onload = function() {
				if (oldonload) {
					oldonload();
				}
				func();
			}
		}
	}
	addLoadEvent(onPageOpen); 
	
	//Page Open
	function onPageOpen() {
		var layer = document.getElementById("loadingHeader");
		if (layer != null) {
			if (document.all)  
			{  
			  document.all.layer.style.visibility="hidden";  
			}  
			else  
			{  
			  document.layer.visibility="hide";  
			}
		}
	}
	
	function showLoadLayer()
	{
	    var layer = document.getElementById("loadingHeader");
		if (layer != null) {
			layer.style.visibility="visible";
		}
	}
	function hideLoadLayer()
	{
	    var layer = document.getElementById("loadingHeader");
		if (layer != null) {
			layer.style.visibility="hidden";
		}
	}

	/*function clearLoadingImg() {
		
		body_back = document.getElementById("textarea");
		body_back.style.background = "none";
	}*/