function validate_login(form)
{
        jumpto = "";
        errors = "";


		var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
		var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$";
		var reg1 = new RegExp(reg1str);
		var reg2 = new RegExp(reg2str);
		if (reg1.test(form.username.value) || !reg2.test(form.username.value)) {
			errors += 'Please use a valid email address:\n';
			if (!jumpto) {
				jumpto = form.username;
			}
		}
		if (form[1].value == "") {
			errors += 'Please enter a Password:\n';
			if (!jumpto) {
				jumpto = form[1];
			}
		}

		if (errors) {
			string = "The following fields were incomplete or invalid. Please complete them to continue.\n\n"+errors;
			alert(string);
			jumpto.focus();
			return false;
        }
		else {
			return true;
       	}
}