function clearForm(frm_elements) {
	for(i=0; i<frm_elements.length; i++) {
		field_type = frm_elements[i].type.toLowerCase();

		switch(field_type) {
			case "text":
			case "password":
			case "textarea":
			case "hidden":
				if (frm_elements[i].name != '_csrf_token') {
					frm_elements[i].value = "";
				}
				break;

			case "radio":
				if (frm_elements[i].id == 'yes-supplies_1' || frm_elements[i].id == 'yes-supplies_2') {
					frm_elements[i].checked = true;
				}
				break; /*truong hop dac biet cua rte*/
			case "checkbox":
				if (frm_elements[i].checked) {
					frm_elements[i].checked = false;
				}
				break;

			case "select-one":
			case "select-multi":
				frm_elements[i].selectedIndex = 0;
				break;
				
			default:
				break;
		}
	}
}