var Page_INIT = function () { $(document).bind("mouseover", function (e) {//鼠标移入 if (e.target.tagName.toUpperCase() == "INPUT") { var input = e.target; if (input.type == "text") {//如果是文本框 if (window.Page_FocusTimer) {//如果处于焦点状态 window.clearTimeout(window.Page_FocusTimer);//清除焦点状态 } window.Page_FocusTimer = window.setTimeout(function () { //每０.２豪秒去执行这个匿名方法一次 if (!input.value) {//如果内容为空，则设为焦点 try { input.focus(); } catch (e) { } } }, 200); } } }).bind("mouseout", function (e) {//鼠标移出 if (e.target.tagName.toUpperCase() == "INPUT") { //被处理的事件源对象它的名称（即ＨＴＭＬ标记）转为大写后如果是INPUT var input = e.target; if (input.type == "text") { if (window.Page_FocusTimer) { window.clearTimeout(window.Page_FocusTimer); } } } }); }