function form_checkFields() {

		d=document.form;

		if (d.payment.value=='0') {alert('Please select your preferred payment method!'); return false;}

		if (d.name.value=='') {alert('Please enter your name!'); return false;}

		if (d.email.value=='') {alert('Please enter your email!'); return false;}

		if (

		    d.email.value!='' && (

		      d.email.value.indexOf(".") == -1 ||

		      d.email.value.indexOf("@") == -1

		    )

		) {alert('Please enter a valid e-mail address!'); return false;}

		if (d.phone.value=='') {alert('Please write your phone number!'); return false;}

		if (d.message.value=='') {alert('Please enter your note!'); return false;}

		return true;

		}