function validateForm(contact)
		{	
		if(document.forms.contact.name.value=="")
			{
				alert("Please enter your full name.");
				return false;
			}
		
		if(document.forms.contact.email.value=="")
			{
				alert("Please enter your email address.");
				return false;
			}
					
		if (validate_email(document.forms.contact.email.value)==false)
			{
			   return false;
			}
		
		if(document.forms.contact.comment.value=="")
			{
				alert("Please enter your comment.");
				return false;
			}	
		}
		
		
		function validate_email(field)
		{	
		if(field.search(/^\w+((-\w+)|(\.\w+))*\@[a-z A-Z 0-9]+((\.|-)[a-z A-Z 0-9]+)*\.[a-z A-Z 0-9]+$/)!=-1)
			{
				
				return true;
			}
		else
			{
				alert("Please enter correct e-mail address!");
				return false;
			}
		}