function whatwidth(){
	if (document.all){
		leftwidth = ((document.body.offsetWidth - 943) / 2);			
	}else if (document.layers){
	    leftwidth = ((document.images.test.width - 943) / 2);
	}else if (document.getElementById){
		leftwidth = ((document.documentElement.offsetWidth - 943) / 2);
	}
	if (leftwidth < 0){
		leftwidth = 0;
	}
	
	//parent.mainFrame.scrollTo(0,0);

	if(document.all){
		goo = document.body.scrollTop
	}else if(document.layers){
		goo = window.pageYOffset
	}else if (document.getElementById){
		goo = document.documentElement.scrollTop
	}
}
function changewidth(whichlayer, lwidth){
	if(document.all){
		eval("document.all."+whichlayer).style.left = lwidth;
	}
	else if(document.layers){
		eval("document.layers."+whichlayer).pageX = lwidth;
	}
	else if (document.getElementById){
		elm = document.getElementById(whichlayer);
		elm.style.left = lwidth;
	}
}

function changeheight(whichlayer, lheight){
	if(document.all){
		eval("document.all."+whichlayer).style.top = lheight;			
	}
	else if(document.layers){
		eval("document.layers."+whichlayer).pageY = lheight;
	}
	else if (document.getElementById){
		elm = document.getElementById(whichlayer);
		elm.style.top = lheight;
	}
}
function moveLayer() {
	whatwidth(); 
	changewidth('Layer1', leftwidth+500); 
	//changeheight('Layer1', goo); 
}
function closeLayer(whichlayer){
	if(document.all){
		eval("document.all."+whichlayer).style.visibility = "hidden";
	}
	else if(document.layers){
		eval("document.layers."+whichlayer).style.visibility = "hidden";
	}
	else if (document.getElementById){
		elm = document.getElementById(whichlayer);
		elm.style.style.visibility = "hidden";
	}
}
window.onresize= moveLayer;// JavaScript Document