初始化时
allshopid的值为111,222,333
newshopid的值为111,222,333
点击“关闭div1”隐藏div1时，newshopid的值减去shopid1的值，也就是变为222,333
再点击“关闭div2”隐藏div2时，newshopid的值再减去shopid2的值，也就是变为333
再点击“关闭div3”隐藏div3时，newshopid的值再减去shopid3的值，也就是变为空<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>无标题页</title>
<script type="text/javascript">
this.closeDiv = function(id)
{
$('div' + id).style.display="none";
// $("newshopid") = ?
}
this.$=function(obj)
{
return document.getElementById(obj);
}
</script>
</head>
<body>
<form id="form1" runat="server">
<input type="text" id="newshopid" name="newshopid" value="111,222,333" style="width:800px"/>
<input type="text" id="allshopid" name="allshopid" value="111,222,333" style="width:800px" />
<br />
<div id="div1">
<input type="hidden" id="shopid1" name="shopid1" value="111" />
<div style="cursor: pointer" onclick="closeDiv('1')">关闭div1</div>
</div>
<div id="div2">
<input type="hidden" id="shopid2" name="shopid2" value="222" />
<div style="cursor: pointer" onclick="closeDiv('2')">关闭div2</div>
</div>
<div id="div3">
<input type="hidden" id="shopid3" name="shopid3" value="333" />
<div style="cursor: pointer" onclick="closeDiv('3')">关闭div3</div>
</div>
</form>
</body>
</html>
<head id="Head1" runat="server">
<title>无标题页 </title>
<script type="text/javascript">
this.closeDiv = function(id)
{
$('div' + id).style.display="none";
$("newshopid").value=(id<3)?$("newshopid").value.replace($('shopid' + id).value+',',''):$("newshopid").value.replace($('shopid' + id).value,'');
}
this.$=function(obj)
{
return document.getElementById(obj);
}
</script>
</head>
<body>
<form id="form1" runat="server">
<input type="text" id="newshopid" name="newshopid" value="111,222,333" style="width:800px"/>
<input type="text" id="allshopid" name="allshopid" value="111,222,333" style="width:800px" />
<br />
<div id="div1">
<input type="hidden" id="shopid1" name="shopid1" value="111" />
<div style="cursor: pointer" onclick="closeDiv('1')">关闭div1 </div>
</div>
<div id="div2">
<input type="hidden" id="shopid2" name="shopid2" value="222" />
<div style="cursor: pointer" onclick="closeDiv('2')">关闭div2 </div>
</div>
<div id="div3">
<input type="hidden" id="shopid3" name="shopid3" value="333" />
<div style="cursor: pointer" onclick="closeDiv('3')">关闭div3 </div>
</div>
</form>
</body>
</html>