function resizeSpacer(){
	document.getElementById('spacer').width = getSpacerSize();
	document.getElementById('spacer').height = 0;
}

function getSpacerSize(){
	  var myWidth = 0, myHeight = 0;
	  if( typeof( window.innerWidth ) == 'number' ) {
		//Non-IE
		myWidth = window.innerWidth;
	  } else if( document.documentElement &&
		  ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
		//IE 6+ in 'standards compliant mode'
		myWidth = document.documentElement.clientWidth;
	  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
		//IE 4 compatible
		myWidth = document.body.offsetWidth;
	  }
	return (myWidth-792)/2;
}