关于用JavaScript拦截form的submit�Ҏ��实现

winder — Sat, 23 Dec 2006 02:37:00 GMT

�q�期遇到需要用JS脚本�l�一拦截一下页面中form的submit�Ҏ��以在��面隐式提交时修改请求URL��单实现如下：

var oldSubmit;
var form = document.forms[0];
if(form != null && form != 'undefined'){
        //备䆾submit函数
    form.oldSubmit = form.submit;
        //覆盖submit函数以实现拦�?/span>
    form.submit = function (){
            //提交前做的操�?.
                //掉原函数来提�?/span>
        form.oldSubmit();
    }
}

上面的代码在��面载入时先执行��׃��实现拦截�Q�对昄��的用submit按钮来提交的可以监控onsubmit事�g来实玎ͼ��q�个�Ҏ��很多没什么太大问题�?img src ="http://www.aygfsteel.com/yaoleiyu/aggbug/89636.html" width = "1" height = "1" />

winder 2006-12-23 10:37 发表评论

计时跌��{��面代码

winder — Tue, 28 Nov 2006 07:15:00 GMT

DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" >
< html >
< head >
< meta http-equiv ="Content-Type" content ="text/html; charset=gb2312" >
< title > 计时跌��{ title >
head >

< body leftmargin ="0" topmargin ="0" >
< table border ="0" align ="center" >
< tr >
< td >
< br >
< table width ="194" height ="113" border ="0" cellpadding ="0" cellspacing ="0" >
   < tr >
     < td >< a href ="#" >< img src ="images/ydzj.jpg" width ="397" height ="265" border ="0" > a > td >
   tr >
   < tr >
     < td align ="center" >< div id ="view" > div > td >
         < script >
             var time = 5000 ;
             var cc = time / 1000 ;
             function count() {
                 if (cc > - 1 ) {
                     var vv = document.getElementById('view');
                    vv.innerHTML = ' < font color = " #0066ff " size = " 2 " >< font color = " red " > ' + cc + ' font > �U�后�q�入新页�?img src="http://www.aygfsteel.com/images/dot.gif" /> font > ';
                    cc -- ;
                    setTimeout( " count() " , 1000 ); // 1�U��g�?/span>
                } else {
                    goto(); // �q�入新页�?/span>
                }
            }
             function goto() {
                location.href = '#';
            }
            count();
         script >
   tr >
table >
td >
tr >
table >
body >
html >

winder 2006-11-28 15:15 发表评论

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关于用JavaScript拦截form的submit�Ҏ��实现

计时跌��{��面代码