6、仅弹出一次窗口13

6、仅弹出一次窗口13

脚本说明:

 

第一步:把如下代码加入<head>区域中

 

<SCRIPT language="JavaScript">

 

<!--

 

function openpopup(){

 

window.open("welcome.htm","","width=300,height=300")

 

}

 

 

 

 

 

function get_cookie(Name) {

 

  var search = Name + "="

 

  var returnvalue = "";

 

  if (document.cookie.length > 0) {

 

    offset = document.cookie.indexOf(search)

 

    if (offset != -1) { // if cookie exists

 

      offset += search.length

 

      // set index of beginning of value

 

      end = document.cookie.indexOf(";", offset);

 

      // set index of end of cookie value

 

      if (end == -1)

 

         end = document.cookie.length;

 

      returnvalue=unescape(document.cookie.substring(offset, end))

 

      }

 

   }

 

  return returnvalue;

 

}

 

 

 

function loadpopup(){

 

if (get_cookie('popped')==''){

 

openpopup()

 

document.cookie="popped=yes"

 

}

 

}

 

 

 

//-->

 

</SCRIPT>

第二步:<body>中内容改为:

 

<body bgcolor="#fef4d9" onunload="loadpopup()">

 

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