function rateItem (element, rating) { 
	for(i=1; i<=5; i++) { 
		if (i > rating) { 
			document.getElementById(element+'_'+i).src='siteimages/rate_off.png';
		} else {
			document.getElementById(element+'_'+i).src='siteimages/rate.png';		
		}
	}
}