document.ns = navigator.appName == "Microsoft Internet Explorer"
function divclose(){
			couplet_left.style.visibility='hidden';
			couplet_right.style.visibility='hidden';
			}

function doCouplet(){
	//if((document.body.offsetWidth>800) && document.ns){	
	if(document.ns){	
	couplet_left.style.visibility='visible';
	couplet_right.style.visibility='visible';	  
	  couplet_left.style.top=15;
	  couplet_left.style.left=10;
	  couplet_right.style.top=10;
	  couplet_right.style.right=10;
	}
}