var descLength
			function checkComment()
			{				
				if(document.comment.text.value == "")
				{
					alert("Please enter a comment before submitting");
					return false;
				}
				
				if(descCount > 500)
				{
					alert("Your comment must be equal to or less than 500 characters.");
					return false;
				}
			
				return true;
			}
			
			function lengthComment()
			{
					descLength = document.comment.text.value;
					descCount = descLength.length;
					document.getElementById('descLength').innerHTML = descCount;	
			}