帮人改的js点击复制代码

<form
 name
="form1" 
method
="post" 
action
="" 
style
=""
>

　<script
 language
="javascript"
>

function copyToClipboard(theField,isalert)

{

var obj=document.getElementById(theField);

if(obj!=null)

{

var clipBoardContent=obj.value;

obj.select();

window.clipboardData.setData("Text",clipBoardContent);

if(isalert!=false)

alert("复制成功。");

}

else

{

 alert("Error!");

}

}

</script
>

<input
 id
="link" 
style
="" 
value
="http://www.wanhuier.com学院路高校联合论坛，欢迎你的加入" 
size
="30" 
type
="text"
>

<input
 name
="Submit" 
value
="点击复制" 
onclick
="javascript:copyToClipboard('link',true);" 
style
="" 
type
="submit"
>

</form
>