function checkForm(){
	var missing = "The following fields are required:\n\n";
    var complete = true;
	if (document.contact_us.first_name.value.length < 1){
				missing += "First Name\n";
				complete = false;
				}
	if (document.contact_us.last_name.value.length < 1){
				missing += "Last Name\n";
				complete = false;
				}
	if (document.contact_us.address.value.length < 1){
				missing += "Address\n";
				complete = false;
				}
	if (document.contact_us.state.value.length < 1){
				missing += "State\n";
				complete = false;
				}				
	if (document.contact_us.zip.value.length < 1){
				missing += "Zip Code\n";
				complete = false;
				}			
	if (document.contact_us.email.value.length < 1){
				missing += "E-mail Address\n";
				complete = false;
				}				
	if (document.contact_us.comments.value.length < 1){
				missing += "Question or Comment\n";
				complete = false;
				}
	if(!complete){
                alert(missing);
        		}
	return complete;
}