// Open iframe
function iframe(url, top, left, width, height) {
	
	var layer = document.getElementById('iframe_layer');
	var iframe = document.getElementById('iframe_frame');
	
	layer.style.top=top;
	layer.style.left=left;
	iframe.style.width=width;
	iframe.style.height=height;
	
	frames['iframe_frame'].location.href=url;
	
	layer.style.display='block';
	
}

// Close iframe
function closeIframe() {
	
	document.getElementById('iframe_layer').style.display='none';
	
}