JS仿新浪邮箱点击联系人添加Email地址_表单按钮特效

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JS仿新浪邮箱点击联系人添加Email地址的功能，也就是当我们点击联系人姓名的时候，与该联系人相关的Email地址被自动填入到收件人信箱一栏，支持选择多个联系人，自动在邮箱地址后面追加逗号，现在几乎大网站都在用的功能。本代码段完成了核心功能，其它功能需要根据你的需要自行扩展了。

<head>
<title>新浪邮箱添加功能</title>
<script type="text/javascript">
var ev={};
var flyDiv="bxAddrFly";
var inceptDiv="SendAddress";
var addEvent="addAddress()";
function oo(obj){return (document.getElementById) ? document.getElementById(obj): document.all[obj];}
function isNone(str){return str==null||str==""?true:false}
var Browser = new Object();
Browser.isFirefox = (navigator.userAgent.toLowerCase().indexOf("firefox")!=-1);
if (Browser.isFirefox) { extendEventObject();}
function extendEventObject() {
window.constructor.prototype.__defineGetter__("event", function(){
var o = arguments.callee.caller;
var e;
while(o != null){
e = o.arguments[0];
if(e && (e.constructor == Event || e.constructor == MouseEvent)) return e;
o = o.caller;
}
return null;
});

Event.prototype.__defineGetter__("srcElement", function () {
var node = this.target;
while (node.nodeType != 1) node = node.parentNode;
return node;
});
}
window.onload = function(){
var addrTree = oo('tbAddrTree');
addrTree.onmouseover = function(){addrTree_event(event)};
addrTree.onmouseout = function(){addrTree_event(event)};
addrTree.onclick = function(){addrTree_event(event)};
}
function addrTree_event(e){
var memberID,tr
var ee = e.srcElement; 
if(ee.tagName=="A"&&e.type=="mouseover"){ee.style.textDecoration="underline"}
if(ee.tagName=="A"&&e.type=="mouseout"){ee.style.textDecoration=""}
if(e.type=="click"&&e.srcElement.tagName=="A"){
var li=ee.parentNode.parentNode;
ev.AddInfo="\""+li.getAttribute("memberName")+"\"<\""+li.getAttribute("email")+"\">"
oo(flyDiv).innerHTML=li.getAttribute("memberName");
addrTree_add(e.clientX,e.clientY)
}
}
function addrTree_add(ex,ey){
if(oo(flyDiv).style.display=='none'||oo(flyDiv).style.display==''){oo(flyDiv).style.display='block';}
var inceptE = oo(inceptDiv);
var inceptEX = inceptE.offsetTop;   
var inceptEY = inceptE.offsetLeft;   
while(inceptE = inceptE.offsetParent){
inceptEX += inceptE.offsetTop;   
inceptEY += inceptE.offsetLeft;   
}
ev.flyArr=new Array(ex,ey,inceptEX,inceptEY,10);
fly(flyDiv,addEvent);
}
// www.mb5u.com
function fly(flyObj,flyRun){
var obj,a=ev.flyArr,x,y
if(flyObj!=null){
if(ev.flyObj!=null){
window.clearTimeout(ev.flyTm);
ev.flyObj.style.top=-900;
}
a[5]=0;
ev.flyObj=oo(flyObj);
ev.flyRun=flyRun;
}

obj=ev.flyObj;
if(a[4]==null){a[4]=1}
a[5]+=a[4]/Math.sqrt(Math.pow(a[2]-a[0],2)+Math.pow(a[3]-a[1],2));
if(a[5]>1){
obj.style.top=-900;
eval(ev.flyRun);
ev.flyObj=null;
return;
}

window.clearTimeout(ev.flyTm);
x=(a[2]-a[0])*a[5]+a[0];
y=(a[3]-a[1])*a[5]+a[1];
obj.style.left=x;
obj.style.top=y;
document.body.style.overflowX="hidden";
ev.flyTm=window.setTimeout("fly()",10)
}

所属频道：表单按钮特效/更新时间：2012-12-07

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