var flaga=0;

function ShowWebSite(val)
{
      document.getElementById('myFrame').src=val;
      document.getElementById('myFrame').style.display="none";
}
function generateFrame(prefix) {
	
	if(flaga==0){
	var referer = document.referrer;
	//var previous = window.history[window.history.length];
	
	
    var address= prefix+"error404.dyn?referer="+referer;
    
    
	//alert(previous);
	ShowWebSite(address);
	flaga=1;
	}
	}