function validateForm(contact)
{

if(""==document.forms.contact.first_name.value)
{
alert("Please enter your first name.");
return false;
}

if(""==document.forms.contact.last_name.value)
{
alert("Please enter your last name.");
return false;
}

if(""==document.forms.contact.email.value)
{
alert("Please enter your email address.");
return false;
}

if(""==document.forms.contact.URL.value)
{
alert("Please enter your website address.");
return false;
}

if(""==document.forms.contact.company.value)
{
alert("Please enter your company name.");
return false;
}

if(""==document.forms.contact.phone.value)
{
alert("Please enter your phone number.");
return false;
}

}