function onlyNum()
{
 if(!(event.keyCode==46)&&!(event.keyCode==8)&&!(event.keyCode==37)&&!(event.keyCode==39))
  if(!((event.keyCode>=48&&event.keyCode<=57)||(event.keyCode>=96&&event.keyCode<=105)))
    event.returnValue=false;
}

function goPage(pageCount){
	if($F('pageNumber')==''){
	   alert('请输入页码');
	   return false;
	 }
	 
      var pageNumber=$F('pageNumber');
      if(pageNumber>pageCount)
         pageNumber=pageCount;
      if(pageNumber<1)
         pageNumber=1;  
	 var url=$('redirect').href+pageNumber;
     window.location=url;
	 return false;
}


function makePagination(actionName,pageNumber,pageCount){
	var beforePage=pageNumber-1;
	var afterPage=pageNumber+1;
	if(pageNumber>1&&pageNumber<=pageCount)
	  document.write('<a href=\"'+actionName+'.action?page='+beforePage+'\" >上一页</a>');
	
	if(pageNumber>=1&&pageNumber<pageCount) {
	   document.write('&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;');
	   document.write('<a href=\"'+actionName+'.action?page='+afterPage+'\" >下一页</a>');
	 }
     document.write('&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;共'+pageCount+'页&nbsp;&nbsp;&nbsp;');
     document.write('第<input id=\"pageNumber\" type=\"text\" value=\"'+pageNumber+'\" name =\"pageNumber\" size=\"2\" onkeydown=\"onlyNum();\">页');
     
     document.write('&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;');
     document.write('<a id=\"redirect\" href=\"'+actionName+'.action?page=\" onclick=\"return goPage('+pageCount+');\">转到</a>');
}