function validate_email(field,alerttxt) {
	with (field) {
		apos=value.indexOf("@")
		dotpos=value.lastIndexOf(".")
		if (apos<1||dotpos-apos<2) {
			alert(alerttxt);
			return false
		}
		else {
			return true
		}
	}
}
        
function validate_invitenew(thisform) {
	with (thisform) {
		//check for matching values in address field
		var er1 = emreg1.value;
		var er2 = emreg2.value;
		if (er1 != er2) {
			alert("The values entered do not match. Please try again.");
			emreg2.focus();
			return false
		}
		else {
			if (validate_email(emreg1,"Not a valid e-mail address!") == false) {
				emreg1.focus();
				return false
			}
			else {
				//alert("So far so good!");
			}
		}
	}
}