var curHref = window.location.href ;
	var newHref = curHref ;
	if(curHref.indexOf("?")>0){
		newHref  += "&version=new" ;
	}
	if(curHref.indexOf("?")<0){
		newHref  +=  "?version=new" ;
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	document.write('<a href="'+newHref+'">新版页面</a>');