var ScreenW = screen.width;
	var ScreenAW = screen.availWidth;
    var SW = document.documentElement.scrollWidth;
    var SH = document.documentElement.scrollHeight;
	var CH = document.documentElement.clientHeight;
    var mask = document.getElementById("mainMaskDiv");
    /*mask.style.width = SW + "px";
    mask.style.height = SH + "px";// FF
    mask.style.left = "0px";
    mask.style.top = "0px";
    mask.style.zIndex = "999";
	if(SW > 1003){
		mask.style.left = (- (SW - 1003)/2 )+ "px";
	}
	if(CH > SH){
		mask.style.height = CH + "px";// !FF
		}
	*/
	//alert("ScreenW:"+ScreenW);
	//alert("ScreenAW:"+ScreenAW);
	//alert("SW:"+SW);
	//alert("CW:"+document.documentElement.clientWidth);
	//alert(CH+":"+SH);