function externalLinks() {
	if (!document.getElementsByTagName) return;
	var anchors = document.getElementsByTagName("a");
	for (var i=0; i<anchors.length; i++) {
		var anchor = anchors[i];
		if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external")
		anchor.target = "_blank";
	}
}

function validate_form(thisform) {
  with (thisform) {
		if (first_name.value == '' || last_name.value == '' || address_line1.value == '' || city.value == '' || postal_code.value == '' || email.value == '' || phone.value == '') {
			alert("Please ensure you have completed all required fields");
			return false
		}
	}
}