function getHeight() {
  return document.compatMode=='CSS1Compat' && !window.opera?document.documentElement.clientHeight:document.body.clientHeight;
}

function getWidth() {
return document.compatMode=='CSS1Compat' && !window.opera?document.documentElement.clientWidth:document.body.clientWidth;
}

popup = function()
	{
	var els = document.getElementsByTagName("div");
	for (var i = 0; i < els.length; i++)
		{
		el = els[i];
		if (el.className=='positioner')
			{
			el.onmouseover=function()
				{
				this.className+=" over";
				}
			el.onmouseout=function()
				{
				this.className=this.className.replace(" over", "");
				}
			}
		}
	}
window.onload=popup;
function pop_form()
	{
	var scrolledDown = document.body.parentNode.scrollTop;
	var w_size = getWidth();
	var w_center = w_size / 2 - 430 / 2;
	document.getElementById('popup').style.top=scrolledDown+150+'px';
	document.getElementById('popup').style.left=w_center+'px';
	document.getElementById('popup').style.display="block";
	}