TreeView控件客户端脚本操作

function SetOnCheckEventHandle()
    ...{
        var inputs=document.getElementsByTagName("input");
        if(inputs)
        ...{
            for(var i=0;i<inputs.length;i++)
            ...{
                if(inputs[i].type=="checkbox")
                ...{
                    inputs[i].onclick=new Function("CheckAllChild(this);CheckParent(this);");                   
                }
            }
        }
    }
    function CheckAllChild(obj)
    ...{
        var div=document.getElementById(obj.id.replace("CheckBox","Nodes"));
        if(div)
        ...{
            var checkBoxs=div.getElementsByTagName("input");
            if(checkBoxs)
            ...{
                for(var i=0;i<checkBoxs.length;i++)
                ...{
                    if(checkBoxs[i].type=="checkbox")
                    ...{
                        checkBoxs[i].checked=obj.checked;
                    }
                }
            }
        }
    }
    function CheckParent(obj)
    ...{
        if(!obj) return;
        if(!obj.parentNode) return;
        if(!obj.parentNode.parentNode) return;
        if(!obj.parentNode.parentNode.parentNode) return;
        if(!obj.parentNode.parentNode.parentNode.parentNode) return;
        
        var parent=obj.parentNode.parentNode.parentNode.parentNode.parentNode;
        if(parent)
        ...{
            if(!parent.id) return;
            var div=document.getElementById(parent.id);
            if(div)
            ...{
                var checkBoxs=div.getElementsByTagName("input");
                if(checkBoxs)
                ...{
                    var checkBoxsCount=0;
                    var checkedCount=0;
                    
                    for(var i=0;i<checkBoxs.length;i++)
                    ...{
                        if(checkBoxs[i].type=="checkbox")
                        ...{
                            checkBoxsCount++;
                            if(checkBoxs[i].checked)
                            ...{
                                checkedCount++;
                            }
                        }
                    }
                    
                    if(checkedCount==0) document.getElementById(parent.id.replace("Nodes","CheckBox")).checked=false;
                    if(checkedCount==checkBoxsCount) document.getElementById(parent.id.replace("Nodes","CheckBox")).checked=true;
                }
            }
            CheckParent(document.getElementById(parent.id.replace("Nodes","CheckBox")));            
        }
    }