function changeLinks()
		{
			var as,i,islink;
// grab all links, loop over them;
			as=document.getElementsByTagName('a');
			for(i=0;i<as.length;i++)
			{
// check which link has a target attribute, and send this one to popup
				if(as[i].getAttribute('target')!='')
				{
					as[i].onclick=function(){return(popup(this));};
					//as[i].onkeypress=function(){return(popup(this));};
				}
			}
			if(top!=self){

// Remove the header table
var l = document.getElementById('tutorial-logo');
if(l){

l.style.display = 'none';

}
var h = document.getElementById('tutorial-heading');
if(h){

h.style.display = 'none';

}
			}
		}
			



		function popup(o)
		{
// open a new window with the location of the link's href
width=820;
height=700;
 if (screen) {
	  topPos = (screen.height / 2) - (height/2)
	 if(top==self){
		 //open in middle
		  leftPos = (screen.width/2)- (width/2)
		 
	 }else{
		 //open off to the right
 leftPos = screen.width-width

	 }
 }
			window.open(o.href,'tuteholder','height='+height+',width='+width+',left='+leftPos+',top='+topPos);
			return false;
		}

// if the browser can deal with DOM, call the function onload		
		if(document.getElementById && document.createTextNode)
		{
			window.onload=changeLinks;
		}


function closeWindow(){
	window.close();
	
	
	
}