function getViewportCenter()
{
 var size = [0, 0];

 if (typeof window.innerWidth != 'undefined')
 {
   size = [
       window.innerWidth,
       window.innerHeight
   ];
 }
 else if (typeof document.documentElement != 'undefined'
     && typeof document.documentElement.clientWidth !=
     'undefined' && document.documentElement.clientWidth != 0)
 {
   size = [
       document.documentElement.clientWidth,
       document.documentElement.clientHeight
   ];
 }
 else
 {
   size = [
       document.getElementsByTagName('body')[0].clientWidth,
       document.getElementsByTagName('body')[0].clientHeight
   ];
 }

centerx="";
centerx = (size[0]/2);

centery="";
centery = (size[1]/2);


 return centerx;
 return centery;
}

getViewportCenter();
	
	
function reloadpage(){
location.href=location.href;
}	

	
function initresize(){
	window.onresize = getViewportCenter;
	//window.onresize = reloadpage;
}