function ValidateContact(obj){
	//Get user input values
	var sFirstName=obj.txt_firstname.value;
	var sLastName=obj.txt_lastname.value;
	var sEmail=obj.txt_email.value; 
	var sREmail=obj.txt_reenter_email.value;
	var sComments=obj.Quantity.value;
	
	if (sFirstName =="")	
	{
	    alert("Please enter the first name.");
		return false;
	}
	if (sLastName =="")	
	{
	    alert("Please enter the last name.");
		return false;
	}
	if (sEmail =="")	
	{
	    alert("Please enter the email address.");
		return false;
	}
	if (sREmail =="")	
	{
	    alert("Please confirm your email address.");
		return false;
	}
		if (sREmail != sEmail)	
	{
	    alert("Your confirmation email address does not match your email address.");
		return false;
	}
	
	if (sComments =="")	
	{
	    alert("Please enter your comments.");
		return false;
	}
	return true;
}