使用jQuery实现动态分页功能

/**  
 * 分页导航条  
 * 09/01/17  
 * @author lym6520@qq.com   
 * @verson v2.0  
 * @param {} fnName         翻页时执行的函数名(传入的第一个参数必须是“当前页码”）)  
 * @param {} fnNameParams       fnName函数的参数，数组形式（比如：var arr = new Array(); arr[0] = 1;arr[1] = "hello"）  
 * @param {} pagetotal          总页码  
 * @param {} totalItem          总记录数  
 * @param {} showID         页面显示分页导航条的div  ID  
 */  
function pageNavigation(fnName, fnNameParams, pagetotal, totalItem, showID) {      
    var fnParam = new Array();   
    //如果这样 fnParam = fnNameParams;两个都指向同一引用   
    for(var i = 0 ; i < fnNameParams.length; i++)   
        fnParam[i] = fnNameParams[i];   
              
     var pageIndex = parseInt(fnNameParams[0]);//当前页   
          
    // 无记录     
    if (pagetotal == 0) {      
        $('#' + showID).empty();//清空翻页导航条      
        return;      
    }      
    // 分页      
    var front = pageIndex - 4;// 前面一截      
    var back = pageIndex + 4;// 后面一截      
       
    $('#' + showID).empty();//清空翻页导航条