function checkform(){
if (document.getElementById('contactus_FName').value == "")
	{
	alert("Please provide your First Name.");
	document.getElementById('contactus_FName').focus();
	return false;
	}
if (document.getElementById('contactus_LName').value == "")
	{
	alert("Please provide your Last Name.");
	document.getElementById('contactus_LName').focus();
	return false;
	}
if (document.getElementById('contactus_Email').value == "")
{ 
	alert("Please provide a valid Email Address.");
	document.getElementById('contactus_Email').focus();
	return false;
}
if (document.getElementById('contactus_Email').value != "")
{ 
	if(!validateEmail(document.getElementById('contactus_Email').value))
		{	
			alert("Please provide a valid Email Address.");
			document.getElementById('contactus_Email').focus();
			return false;
		}
}
if (document.getElementById('contactus_City').value == "")
	{
	alert("Please provide your City.");
	document.getElementById('contactus_City').focus();
	return false;
	}	
if (document.getElementById('contactus_State')[document.getElementById('contactus_State').selectedIndex].value == "")
	{
	alert("Please provide your State.");
	document.getElementById('contactus_State').focus();
	return false;
	}
if (document.getElementById('contactus_Zip').value == "")
	{
	alert("Please provide your Zip Code.");
	document.getElementById('contactus_Zip').focus();
	return false;
	}
if (document.getElementById('contactus_Message').value == "")
	{
	alert("Please provide your message.");
	document.getElementById('contactus_Message').focus();
	return false;
	}
if (document.getElementById('contactus_Email').value != "")
	{ 
	if(!validateEmail(document.getElementById('contactus_Email').value))
		{	
		alert("Please provide a valid Email Address.");
		document.getElementById('customer_Email').focus();
		return false;
		}
	}		
	return true;
}


function validateEmail(strValue) 
{
	var objRegExp = /^([0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*@(([0-9a-zA-Z])+([-\w]*[0-9a-zA-Z])*\.)+[a-zA-Z]{2,9})$/i;
	//check for valid email
	return objRegExp.test(strValue);
}