x = 20;
y = 130;
function setVisible(obj)
{
	obj = document.getElementById(obj);
	obj.style.visibility = (obj.style.visibility == 'visible') ? 'hidden' : 'visible';
}
function placeIt(obj)
{
	 var myWidth = 0
	  if( typeof( window.innerWidth ) == 'number' ) {
		//Non-IE
		myWidth = window.innerWidth;
	  } else if( document.documentElement && ( document.documentElement.clientWidth) ) {
		//IE 6+ in 'standards compliant mode'
		myWidth = document.documentElement.clientWidth;
	  } else if( document.body && ( document.body.clientWidth ) ) {
		//IE 4 compatible
		myWidth = document.body.clientWidth;
	  }
	  myWidth2 = Math.round(myWidth /2 ) - 300;

	
	obj = document.getElementById(obj);
	if (document.documentElement)
	{
		theLeft = document.documentElement.scrollLeft;
		theTop = document.documentElement.scrollTop;
	}
	else if (document.body)
	{
		theLeft = document.body.scrollLeft;
		theTop = document.body.scrollTop;
	}
	theLeft += myWidth2;
	theTop += y;
	obj.style.left = theLeft + 'px' ;
	obj.style.top = theTop + 'px' ;
	setTimeout("placeIt('layer1')",500);
}
window.onscroll = setTimeout("placeIt('layer1')",500);