String.prototype.yy_stv_startsWith = function(s)
{
/// <summary>StartsWith()</summary>

var reg = new RegExp("^" + s);
return reg.test(this);
}
function yy_stv_addEvent(obj, evtType, fn)
{
/// <summary>绑定事件</summary>

// FF
    if (obj.addEventListener)
{
obj.addEventListener(evtType, fn, true);
return true;
}
// IE
    else if (obj.attachEvent)
{
var r = obj.attachEvent("on" + evtType, fn);
return r;
}
else
{
return false;
}
}
/**//*Helper 结束*/
/**//*联动复选框 开始*/
var yy_stv_ccTreeView_pre = new Array(); // cs中动态向其灌数据（TreeView内控件ID的前缀数组）

function yy_stv_ccClickCheckbox(e)
{
/// <summary>单击复选框时</summary>

var evt = e || window.event; // FF || IE
    var obj = evt.target || evt.srcElement  // FF || IE

yy_stv_foreachChildCheckbox(obj);
yy_stv_foreachParentCheckbox(obj);
}
function yy_stv_checkParentCheckbox(table, checked)
{
/// <summary>设置父复选框的状态</summary>

var nodes = table.parentNode.parentNode.childNodes;
for (var i=1; i<nodes.length; i++)
{
if (nodes[i] == table.parentNode)
{
if (typeof(nodes[i-1]) == 'undefined' || typeof(nodes[i-1].rows) == 'undefined') return;
for (var x=0; x < nodes[i-1].rows.length; x++)
{
for (var j=0; j < nodes[i-1].rows[x].cells.length; j++)
{
// debugger;
                    var chk = nodes[i-1].rows[x].cells[j].childNodes[0];
if (typeof(chk) != 'undefined' && chk.tagName == "INPUT" && chk.type == "checkbox")
{
chk.checked = checked;
yy_stv_foreachParentCheckbox(nodes[i-1]);
return;
}
}
}
}
}
}
function yy_stv_foreachChildCheckbox(obj)
{
/// <summary>单击父复选框时，设置其子复选框的选中状态</summary>

var checked;
if (obj.tagName == "INPUT" && obj.type == "checkbox")
{
checked = obj.checked;
do
{
obj = obj.parentNode;
}
while (obj.tagName != "TABLE")
}
var nodes = obj.parentNode.childNodes;
for (var i=0; i<nodes.length - 1; i++)
{
if (nodes[i] == obj && nodes[i + 1].tagName == "DIV")
{
var elements = nodes[i+1].getElementsByTagName("INPUT");
for (j=0; j< elements.length; j++)
{
if (elements[j].type == 'checkbox')
{
elements[j].checked = checked;
}
}
}
}
}
function yy_stv_foreachParentCheckbox(obj)
{
/// <summary>单击某一复选框时，设置其父复选框的选中状态</summary>

var checkedNum = 0;
var uncheckedNum = 0;
if (obj.tagName == "INPUT" && obj.type == "checkbox")
{
do
{
obj = obj.parentNode;
}
while (obj.tagName != "TABLE")
}
var tables = obj.parentNode.getElementsByTagName("TABLE");
if (typeof(tables) == 'undefined') return;
for (var i=0; i < tables.length; i++)
{
for (var x=0; x < tables[i].rows.length; x++)
{
for (var j=0; j < tables[i].rows[x].cells.length; j++)
{
var chk = tables[i].rows[x].cells[j].childNodes[0];
if (typeof(chk) != 'undefined' && chk.tagName == "INPUT" && chk.type == "checkbox")
{
if (chk.checked)
checkedNum ++;
else
uncheckedNum ++;
}
}
}
}
if (uncheckedNum == 0)
{
yy_stv_checkParentCheckbox(obj, true);
}
else
{
yy_stv_checkParentCheckbox(obj, false);
}
}
function yy_stv_attachCheckboxClickListener()
{
/// <summary>监听所有联动复选框的单击事件</summary>

var elements =  document.getElementsByTagName("INPUT");
for (i=0; i< elements.length; i++)
{
if (elements[i].type == 'checkbox')
{
for (j=0; j<yy_stv_ccTreeView_pre.length; j++)
{
if (elements[i].id.yy_stv_startsWith(yy_stv_ccTreeView_pre[j]))
{
yy_stv_addEvent(elements[i], 'click', yy_stv_ccClickCheckbox);
break;
}
}
}
}
}
if (document.all)
{
window.attachEvent('onload', yy_stv_attachCheckboxClickListener);
}
else
{
window.addEventListener('load', yy_stv_attachCheckboxClickListener, false);
}
/**//*联动复选框 结束*/