function reg()
{	
	if(document.getElementById('textfield').value == '')
	{
		alert("Please enter your name.");
		document.getElementById('textfield').focus();
		return false;
	}
	if(document.getElementById('textfield2').value == '')
	{
		alert("Please enter your last name.");
		document.getElementById('textfield2').focus();
		return false;
	}
	if (document.getElementById('textfield3').value.indexOf('@') == -1)
	{
	alert ("You must enter a valid email.");
	document.getElementById('textfield3').focus();
	return false;
	}
	if(document.getElementById('textfield4').value == '')
	{
		alert("Please enter yor phone number.");
		document.getElementById('textfield4').focus();
		return false;
	}
	if(document.getElementById('textfield5').value == '')
	{
		alert("Please enter yor comments.");
		document.getElementById('textfield5').focus();
		return false;
	}
	return true;
}