通过脚本控制指定内容不能被选择

复制代码 代码如下:

<script type="text/javascript"> 
disableSelection(document.body) /https://img.qb5200.com/download-x/disable text selection on entire body of page 
</script> 

<script type="text/javascript"> 
var somediv=document.getElementById("mydiv") 
disableSelection(somediv) /https://img.qb5200.com/download-x/disable text selection within DIV with id="mydiv" 
</script> 

<script type="text/javascript"> 
var alltables=document.getElementsByTagName("table") 
for (var i=0; i<alltables.length; i++) 
disableSelection(alltables[i]) /https://img.qb5200.com/download-x/disable text selection within all tables on the page 
</script>

<script type="text/javascript"> //more javascript from http://www.smallrain.net function disableSelection(target){ if (typeof target.onselectstart!="undefined") //IE route target.onselectstart=function(){return false} else if (typeof target.style.MozUserSelect!="undefined") //Firefox route target.style.MozUserSelect="none" else //All other route (ie: Opera) target.onmousedown=function(){return false} target.style.cursor = "default" } //Sample usages /https://img.qb5200.com/download-x/disableSelection(document.body) //Disable text selection on entire body /https://img.qb5200.com/download-x/disableSelection(document.getElementById("mydiv")) //Disable text selection on element with id="mydiv" </script> <div>这里不能选择</div> <script type="text/javascript"> var somediv=document.getElementById("test") disableSelection(somediv) /https://img.qb5200.com/download-x/disable text selection within DIV with id="mydiv" </script>
[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]