function validateForm()
{
    trimFields();
	if(obj.first_name.value == "")
	{
		alert("Please enter your First Name.");
		obj.first_name.focus();
		return false;
	}
	if(obj.receive_type[0].checked == true)
	{
		if(obj.email.value == "")
		{
			alert("Please enter the Email Address.");
			obj.email.focus();
			return false;
		}
		if(!chkEmail(obj.email.value))
		{
			alert("Invalid Email ID!\nPlease review and correct it.");
			obj.email.focus();
			obj.email.select();
			return false;
		}
	}
	else
	{
		if(obj.address.value == "")
		{
			alert("Please enter the Street Address");
			obj.address.focus();
			return false;
		}
		if(obj.city.value == "")
		{
			alert("Please enter the City");
			obj.city.focus();
			return false;
		}
		if(obj.state.selectedIndex == 0)
		{
			alert("Please select the State.");
			obj.state.focus();
			return;
		}
		if(obj.zip.value == "")
		{
			alert("Please enter the Zip");
			obj.zip.focus();
			return false;
		}
	}
	//All okay
	return true;
}

function alterBlock()
{
	document.getElementById('us_mail_blk').style.display = (obj.receive_type[1].checked == true)?'block':'none';
	document.getElementById('email_blk').style.display = (obj.receive_type[0].checked == true)?'block':'none';
}