function selectButton(num)
{
	var rating;
	
	rating = document.getElementById("comment_rating");
	
	
	//change the rating
	rating.value = num;
	
	switch(num)
	{
		case 1:
			document.getElementById("positive_button").src = "http://www.proactivreviews.net/wp-content/themes/new/images/thumb-green2-hover.png";
			document.getElementById("negative_button").src = "http://www.proactivreviews.net/wp-content/themes/new/images/thumb-red2.png";
			rating.value = 'Positive';
		break;
		
		case 2:
			document.getElementById("positive_button").src = "http://www.proactivreviews.net/wp-content/themes/new/images/thumb-green2.png";
			document.getElementById("negative_button").src = "http://www.proactivreviews.net/wp-content/themes/new/images/thumb-red2-hover.png";
			rating.value = 'Negative';
		break;
		
		default:
		
		break;
	}
	
}