function search_by_standards(element) {

		var standard_id = element.standard_id.options[element.standard_id.selectedIndex].value;

		if (standard_id) {
			window.location = "search.php?stype=standards&standard_id=" + standard_id;
		}

	}



	function search_by_keywords(element) {

		var keyword_id = element.keyword_id.options[element.keyword_id.selectedIndex].value;

		if (keyword_id) {
			window.location = "search.php?stype=keywords&keyword_id=" + keyword_id;
		}

	}



	function check_form(element) {

			var email;
			var telephone;

			email = document.myform.Email.value;
			telephone = document.myform.Telephone.value;

				if (email.indexOf("@") == -1) {

					alert ('You must provide a valid email address');
					return false;
				}
				else {
					return true;
				}

	}