function rating_highlight(num, counter) { 

	var rating = document.getElementById('rating_'+counter).value;
	
	for(i=1; i<=5; i++) {
		
		document.getElementById('star_'+i+'_'+counter).src = "images/star_off.gif";
		
	}
	
	for(i=1; i<=num; i++) {
		
		document.getElementById('star_'+i+'_'+counter).src = "images/star.gif";
		
	}

}

function rating_unhighlight(counter) { 
	
	var rating = document.getElementById('rating_'+counter).value;

	for(i=2; i<=5; i++) {
		
		if(i > rating) { 
		
			document.getElementById('star_'+i+'_'+counter).src = "images/star_off.gif";
			
		} else { 
		
			document.getElementById('star_'+i+'_'+counter).src = "images/star.gif";
		
		}
		
	}
	
}

function rating_click(num, counter) { 
	
	for(i=2; i<=5; i++) { 
	
		document.getElementById('star_'+i+'_'+counter).src = "images/star_off.gif";
	
	}
	
	for(i=2; i<=num; i++) {
		
		document.getElementById('star_'+i+'_'+counter).src = "images/star.gif";
		
	}
	
	document.getElementById('rating_'+counter).value = num;

}