function closepopup(){
	var obj = document.getElementById('zoom');
	obj.style.display = 'none';
	var bigimg = document.getElementById('zoomimg');
	bigimg.src = '/images/loading.gif';
}

function zoompopupWindow(img, w, h){
	var scrWidth = document.body.clientWidth;
	var scrHeight = document.body.clientHeight + 35;
	var brWidth = document.documentElement.clientWidth;
	var brHeight = document.documentElement.clientHeight;
	if (scrHeight < brHeight) scrHeight = brHeight;

	var zoom = document.getElementById('zoom');
	zoom.style.width = scrWidth + 'px';
	zoom.style.height = scrHeight + 'px';

	var bigimg = document.getElementById('zoomimg');
	bigimg.src = img;

	var div = document.getElementById('zoomdiv');
	div.style.width = w + 'px';
	div.style.height = (h + 20) + 'px';

	var obj = document.getElementById('zoom');
	obj.style.display = 'block';

	if (typeof(window.pageXOffset) == 'number'){
		var scrollX = window.pageXOffset;
		var scrollY = window.pageYOffset;
	} else if (document.body && (document.body.scrollLeft || document.body.scrollTop)) {
		var scrollX = document.body.scrollLeft;
		var scrollY = document.body.scrollTop;
	} else if (document.documentElement && (document.documentElement.scrollLeft || document.documentElement.scrollTop)){
		var scrollX = document.documentElement.scrollLeft;
		var scrollY = document.documentElement.scrollTop;
	}
	if (typeof(scrollX) != 'number') scrollX = 0;
	if (typeof(scrollY) != 'number') scrollY = 0;

	var x = (brWidth - div.offsetWidth) / 2;
	var y = (brHeight - div.offsetHeight) / 2;
	if (x < 0) x = 0;
	if (y < 0) y = 0;

	div.style.left = scrollX + x + 'px';
	div.style.top = scrollY + y + 'px';
}