//CheckBox 全选/反选方法

function checkselect()
{
    var obj = document.getElementById("ckSeleAll");
    if(obj.checked == true)
        checkAll();
    else if(obj.checked == false)
        uncheckAll();
}
//返回所有选中的CheckBox的Value值,如果没有任何CheckBox被选中则返回objid==""
function getcheckid(objname)
{
    var objs = document.getElementsByTagName("input");
    var objid="";
    for(var i = 0 ; i<objs.length;i++)
    {
        if(objs[i].type.toLowerCase() == "checkbox" && objs[i].checked == true && objs[i].id != objname)
        {
            objid+=objs[i].value+"|";
            }
    }
    return objid
}
//全选

function checkAll()
{
    var objs = document.getElementsByTagName("input");
    for(var i=0; i<objs.length; i++)
    {
        if(objs[i].type.toLowerCase() == "checkbox" )
            objs[i].checked = true;
    }        
}
//反选

function uncheckAll()
{
    var objs = document.getElementsByTagName("input");
    for(var i=0; i<objs.length; i++)
    {
        if(objs[i].type.toLowerCase() == "checkbox" )            
            objs[i].checked = false;
    }        
}