/*
	popstuff 
	function to automatically add popup window calls to each link
	with a target, and add close window links to the popups.
*/

function initpop()
{
	var closeElementId='closewindow';
	var closeLinkText='Close window';
	var windowAttributes='width=640,height=480,left=0,top=0,resizable=yes,scrollbars=yes,location=no';

	if(!window.opener)
	{
		var as,i,popfun
		as=document.getElementsByTagName('a');
		for (i=0;i<as.length;i++)
		{
			if(as[i].target)
			{
				popfun=function(){window.open(this.href,'',windowAttributes);return false;};
				as[i].onclick=popfun;
				as[i].onkeypress=popfun;
			}
		}
	} else {
		var closep,closelink,closetext;
		closelink=document.createElement('a');
		closetext=document.createTextNode(closeLinkText);
		closelink.href='#';
		closelink.appendChild(closetext);
		closelink.onclick=function(){self.close();};
		if(document.getElementById(closeElementId))
		{
			document.getElementById(closeElementId).appendChild(closelink);	
		} else {
			closep=document.createElement('p');
			closep.id=closeElementId;
			closep.appendChild(closelink);
			document.body.insertBefore(closep,document.body.firstChild);	
		}
	}
}

// With thanks to Scott Andrew
function addEvent(obj, evType, fn)
{ 
	if (obj.addEventListener)
	{ 
		obj.addEventListener(evType, fn, true); 
		return true; 
	} else if (obj.attachEvent){ 
		var r = obj.attachEvent("on"+evType, fn); 
		return r; 
	} else { 
		return false; 
	} 
}
addEvent(window,'load',initpop);