function resize() {
	var width=document.getElementById("coupon").offsetWidth;
	var height=document.getElementById("coupon").offsetHeight;
	
	window.resizeTo(width,height);
	
	var deltawidth=document.body.clientWidth-width;
	var deltaheight=document.body.clientHeight-height;
	
	window.resizeTo(width-deltawidth+20,height-deltaheight+20);
}