function res()
{	  
var h=0; 	
var margin=350;
	
if(document.body.clientHeight)
{

 h=document.body.clientHeight; 				   
 document.getElementById("res").style.height=h-margin+"px";	 
 if (h-margin<257) document.getElementById("res").style.height="257px";	 

 


}	
/*    else if(window.innerHeight) 
	{
	 h=window.innerHeight; 
     document.getElementById("img_res").style.height=h-margin+"px";	
     if (h-margin<257) document.getElementById("img_res").style.height="257px";	 	  
	 }	  
*/	
}	  
	
//window.onresize=res;
window.onload=res;