<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js" type="text/javascript"></script>
<script language="javascript" type="text/javascript">
$(‘.popup‘).click(function (event) {
event.preventDefault();
var iTop = (window.screen.height-30-600)/2;
var iLeft = (window.screen.width-10-850)/2;
window.open($(this).attr("href"), "popupWindow", "width=850,height=600,top="+iTop+",left="+iLeft+",scrollbars=yes");
});
</script>
示例：
<a hre=http://www.51cto.com class="popup">51cto</a>
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