一种前端分页的方法

function goPage(pno,psize){
     var itable = document.getElementById("idData");
     var num = itable.rows.length;//表格所有行数(所有记录数)
     console.log(num);
     var totalPage = 0;//总页数
     var pageSize = psize;//每页显示行数
     //总共分几页 
     if(num/pageSize > parseInt(num/pageSize)){   
             totalPage=parseInt(num/pageSize)+1;   
        }else{   
            totalPage=parseInt(num/pageSize);   
        }   
     var currentPage = pno;//当前页数
     var startRow = (currentPage - 1) * pageSize+1;//开始显示的行  31 
        var endRow = currentPage * pageSize;//结束显示的行   40
        endRow = (endRow > num)? num : endRow;    40
        console.log(endRow);
        //遍历显示数据实现分页
     for(var i=1;i<(num+1);i++){    
         var irow = itable.rows[i-1];
         if(i>=startRow && i<=endRow){
             irow.style.display = "block";    
         }else{
             irow.style.display = "none";
         }
     }
     var pageEnd = document.getElementById("pageEnd");
     var tempStr = "共"+num+"条记录 分"+totalPage+"页 当前第"+currentPage+"页";
     if(currentPage>1){
         tempStr += "<a href=\"#\" onClick=\"goPage("+(1)+","+psize+")\">首页</a>";
         tempStr += "<a href=\"#\" onClick=\"goPage("+(currentPage-1)+","+psize+")\"><上一页</a>"
     }else{
         tempStr += "首页";
         tempStr += "<上一页";    
     }

     if(currentPage<totalPage){
         tempStr += "<a href=\"#\" onClick=\"goPage("+(currentPage+1)+","+psize+")\">下一页></a>";
         tempStr += "<a href=\"#\" onClick=\"goPage("+(totalPage)+","+psize+")\">尾页</a>";
     }else{
         tempStr += "下一页>";
         tempStr += "尾页";    
     }
     document.getElementById("barcon").innerHTML = tempStr;    
 }
</script>