function validate(tt)
		{ 	
			if(tt.name.value =="")
			{
				alert("Please enter your name!");
				tt.name.focus();
				return false;
			}
									 
			if(tt.email.value =="")
			{
				alert("Please enter your correct email address!");
				tt.email.focus();
				return false;
			}

			if(!isValidEmail(tt.email.value))
			{
				tt.email.focus();
				return false;
			}			

			if(tt.subject.value =="")
			{
				alert("Please enter a subject you'd like to discuss!");
				tt.subject.focus();
				return false;
			}			

			if(tt.comments.value =="")
			{
				alert("Please enter your comments!");
				tt.comments.focus();
				return false;
			}			
		}