function valid()
{
	if(document.contact_us.name.value == '')
	{
		alert('Please enter the Name');
		document.contact_us.name.focus();
		return false;
	}
	
	if(document.contact_us.phoneno.value == '')
	{
		alert('Please enter the Telephone');
		document.contact_us.phoneno.focus();
		return false;
	}
	
	if(document.contact_us.email.value == '')
	{
		alert('Please enter the Email ID');
		document.contact_us.email.focus();
		return false;
	}
	
	
	
	if(document.contact_us.comment.value == '')
	{
		alert('Please enter the comment');
		document.contact_us.comment.focus();
		return false;
	}


	return true;
}


function validEmail()
{
	if (document.contact_us.email.value != "")
	{
		var str=document.contact_us.email.value 
		var filter=/^[_A-z0-9-]+((\.|\+)[_A-z0-9-]+)*@[A-z0-9-]+(\.[A-z0-9-]+)*(\.[A-z]{2,4})$/
		if (filter.test(str))
			testresults=true; 
		else 
		{ 
			alert("Please enter valid email address!") ;
			document.contact_us.email.value = "";
			document.contact_us.email.focus();
			testresults=false; 
	   }
		   return (testresults);
	 }
}

//validation for newsletter

function newsletter_valid()
{
	
//	if(document.newsletter.email.value == '')
//	{
//		alert('Please enter the email address');
//		document.newsletter.email.focus();
//		return false;
//	}
	
	if (document.newsletter.Newsletter.value != "")
	{
		var str=document.newsletter.Newsletter.value 
		var filter=/^[_A-z0-9-]+((\.|\+)[_A-z0-9-]+)*@[A-z0-9-]+(\.[A-z0-9-]+)*(\.[A-z]{2,4})$/
		if (filter.test(str))
			testresults=true; 
		else 
		{ 
			alert("Please enter valid email address!") ;
			document.newsletter.Newsletter.value = "";
			document.newsletter.Newsletter.focus();
			testresults=false; 
	   }
		   return (testresults);
	 }
	
}