function getReivew(div_id)
{
	var x=document.getElementById(div_id)
	x.style.display=(x.style.display)==''? 'none':x.style.display;
  	if (x.style.display=='none'){
		x.style.display = 'block';
	}else{
		x.style.display = 'none';
	}	
}

function winpop(url,name,sizex,sizey)
{
        newwin = window.open(url, name, "width=" + sizex + ",height=" + sizey + ",toolbar=no,location=no,directories=no,status=0,resizable=no,scrollbars=auto,menubar=no");
newwin.moveTo(((screen.width/2)-(sizex/2)),((screen.height/2)-(sizey/2)));
}

function setFooter() {
	if (document.getElementById) {
		var windowHeight=getWindowHeight();
		if (windowHeight>0) 
		{
			var contentHeight=
			document.getElementById('content').offsetHeight;
			var footerElement=
			document.getElementById('footer');
			var footerHeight=footerElement.offsetHeight;
			if (windowHeight-(contentHeight+footerHeight)>=0)
			{
				footerElement.style.position='relative';
				footerElement.style.top=(windowHeight-
				(contentHeight+footerHeight))+'px';
			}
			else {
			footerElement.style.position='static';
			}
		}
	}
}

function getWindowHeight() 
{
	var windowHeight = 0;
	
	if (typeof(window.innerHeight)=='number') 
	{
		windowHeight=window.innerHeight;
	}
	else {
		if (document.documentElement&&document.documentElement.clientHeight) 
		{
			windowHeight = document.documentElement.clientHeight;
		}
		else {
			if (document.body&&document.body.clientHeight)
			{
				windowHeight=document.body.clientHeight;
			}
		}
	}
	
	return windowHeight;
}