function validateForm(contact)
{

if(""==document.forms.contact.name.value)
{
alert("Please enter your full name.");
document.forms.contact.name.focus();

return false;
}

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

return false;
}

if(""==document.forms.contact.txtcomment.value)
{
alert("Please enter your Comment.");
document.forms.contact.txtcomment.focus();

return false;
}

}