function TCombo(id, url, isOnChange, isBlur, isAfter, isOnKeyPressed, hiddenId) {
    var self = this;
    var comboObj;
    var url;
    this.url = url;
    this.id = id;//orig id name
    var isOnChange; 
    this.isOnChange = isOnChange;
    var hiddenId;
    this.hiddenId = hiddenId;
    this.isBlur = isBlur;
    this.isOnKeyPressed = isOnKeyPressed
    this.isOnSelectionChange = false;
    this.isAfter = isAfter;
    this.isOnOpen = false;
    var blurType = 0;
    this.blurType = blurType;
    this.isLinkAnother = false;//是否关联其他combo信息联动
    var stringObj = String;
    
    this.initComboEvent = function(){
        self.comboObj = dhtmlXComboFromSelect(self.id);
    };

    this.setRequestUrl = function(url){
        self.url = url;
    };

    this.bind = function(){
        if(isAfter){
            self.comboObj.loadXML(self.url,self.afterFun);
        }else{
            self.comboObj.loadXML(self.url);
        }
        
        if(isOnChange){
            self.comboObj.attachEvent("onChange",self.onChangeFun);
        }
        
        if(isBlur){
            self.comboObj.attachEvent("onBlur",self.blurFun);
        }
        
        if(isOnKeyPressed){
            self.comboObj.attachEvent("onKeyPressed",self.onKeyPressedFun);
        }
    };

    this.afterFun = function(){

    };

    this.onChangeFun = function(){
        self.setText(self.getObjValue(self.hiddenId));
    };

    this.blurFun = function(){
        self.blurSplitFun();
    };
    
    this.onOpenFun = function(){
        
    };
    
    this.setText = function(val){
        self.comboObj.setComboText(val);  
    };
    
    this.blurSplitFun = function(){
        var splitCount = self.comboObj.getComboText().trim().indexOf("|");
        
        if(self.comboObj.getComboText().trim() == "")
        {
            self.setObjValue(self.hiddenId,"");
            self.comboObj.setComboText(self.getObjValue(self.hiddenId));
        }
        else
        {                
            if(splitCount > 0){
                splitCount += 2;
            }
            var selectedStr = self.comboObj.getComboText().trim().substring(splitCount);
           
            if(splitCount > 0){                    
                self.comboObj.setComboText(selectedStr);
                self.setObjValue(self.hiddenId,selectedStr);
            }else{
                self.comboObj.setComboText(self.getObjValue(self.hiddenId));
            }
        }
    };
    
    this.onKeyPressedFun = function(keyCode){
        
        if(keyCode!="8"){          
            var arrayArg = new Array();
            setTimeout(function(){
               var filterCount = 0;
               var is = -1;
               var ishd = self.getObjValue(self.hiddenId);
               
               if("" != self.comboObj.getComboText().trim()){
                   while("undefined" != typeof self.comboObj.getOptionByIndex(filterCount)){
                        var comboValue = self.comboObj.getOptionByIndex(filterCount).text.toUpperCase();
                        var enterValue = self.comboObj.getComboText().trim().toUpperCase();
                        
                        self.setObjValue(self.hiddenId,self.comboObj.getComboText().trim().toUpperCase());
                        if(comboValue.indexOf(enterValue) == 0){
                            self.comboObj.selectOption(filterCount,true,true); 
                            is = filterCount;
                            break;
                        }
                        ++filterCount;
                   }
                    if(is==-1){
                       self.setObjValue(self.hiddenId,ishd);
                    }
               }
             },10);
         }
    };
    
    this.getObj = function(id){
        return document.getElementById(id);
    };
    
    this.setObjValue = function(id,val){
        self.getObj(id).value = val;
    };
    
    this.getObjValue = function(id){
        return self.getObj(id).value;
    };
}

String.prototype.trim = function() { return this.replace(/(^\s*)|(\s*$)/g,""); }