检测页面来源
下面框中为脚本显示区
脚本说明： 把如下代码加入<body>区域中: <SCRIPT> <!-- function check(){ //remove this line to use the script for real var from = document.referrer var here = "http://www.njcatv.net/javascript/an22.htm" //Change this to your site alert("From:"+from);//remove this line to use the script for real alert("Here:"+here);//remove this line to use the script for real if (from.substring(0,here.length) != here) history.back() else document.location.replace('http://www.njcatv.net/javascript/an22.htm'); //Page to go to if OK }//remove this line to use the script for real //--> </SCRIPT> <FORM> <INPUT TYPE=button VALUE="Check" onClick="check()"> </FORM>