function chkForm() {
	var x=document.regForm;
	document.P_returnValue=true;
	if (x.volumecalc) {
		if (x.volumecalc.value == '') {
			alert("Please enter your estimated annual use.");
			x.volumecalc.focus();
			document.P_returnValue=false;
			return;
		}
	}
	if (x.ldcname) {
		if (x.ldcname.selectedIndex == 0) {
			alert("Please select your utility company.");
			x.ldcname.focus();
			document.P_returnValue=false;
			return;
		}
	}
	if (x.Company_Name) {
		if (x.Company_Name.value == '') {
			alert("Please enter your company name.");
			x.Company_Name.focus();
			document.P_returnValue=false;
			return;
		}
	}
	if (x.firstname) {
		if (x.firstname.value == '') {
			alert("Please enter your first name.");
			x.firstname.focus();
			document.P_returnValue=false;
			return;
		}
	}
	if (x.lastname) {
		if (x.lastname.value == '') {
			alert("Please enter your surname.");
			x.lastname.focus();
			document.P_returnValue=false;
			return;
		}
	}
	if (x.email) {
		if (x.email.value == '') {
			alert("Please enter your e-mail address.");
			x.email.focus();
			document.P_returnValue=false;
			return;
		}
	}
	if (x.phone) {
		if (x.phone.value == '') {
			alert("Please enter your telephone number.");
			x.phone.focus();
			document.P_returnValue=false;
			return;
		}
	}
}