select.txt

/**
 * select 初始化
 * @param selectId
 * @param optionValue
 */
function selectInitByOptionValue(selectId, optionValue) {
    var select = document.getElementById(selectId);
    for (var i = 0; i < select.options.length; i++) {
        if (select.options[i].value == optionValue) {
            select.options[i].selected = true;
            break;
        }
    }
}