dede列表页输入数字，跳转指定页面

<script language="javascript">   <!--   function onCheckPage(){   var beginPage = parseInt(document.beginPagefrm.beginPage.value);   if(isNaN(beginPage)){   alert("请输入数字！");   return false;   }   if(beginPage <= 0 ) {   beginPage = 1;   }   if(beginPage > 100){   beginPage = 100;   }   if(beginPage > 1 ) {   document.beginPagefrm.action = "list_{dede:field name='typeid'/}_" + beginPage + ".html";   } else {   document.beginPagefrm.action = "{dede:type typeid=’0′ row=1}[field:typelink /]{/dede:type}";   }   return true;   }   -->   </script> 

<div class="dede_pages"> <ul class="pagelist"> <form name="beginPagefrm" method=post action="" *****ubmit="return onCheckPage()">   {dede:pagelist listitem="index,end,pre,next,pageno" listsize="5"/}直接到第<input size=4 name="beginPage" value="">页<input type="submit" name="Submit" value="前住"> </form> </ul> </div>