function checkform(form)
	{
		
		if  (document.contact_form.first_name.value == "")
			{
				alert ("Please complete first name")
				document.contact_form.first_name.focus()
				return false;
			}
		else if  (document.contact_form.last_name.value == "")
			{
				alert ("Please complete last name")
				document.contact_form.last_name.focus()
				return false;
			}
		else if ((document.contact_form.email.value == "") ||
			(document.contact_form.email.value.indexOf( '@' ) == -1) ||
			(document.contact_form.email.value.indexOf( '.' ) == -1))
			{
				alert ("Please enter a valid email")
				document.contact_form.email.focus()
				return false;
			}
		else if  (document.contact_form.subject.value == "")
			{
				alert ("Please enter a subject for this message")
				document.contact_form.subject.focus()
				return false;
			}
		else if  (document.contact_form.message.value == "")
			{
				alert ("Please enter a message")
				document.contact_form.message.focus()
				return false;
			}
	return true;
	
}