docs: function(row,displayFlag){
  			var displayStr = '';
  			if(!this.options.autoExpand && row.level > 0 && displayFlag != 'block'){
  				displayStr = 'display:none;'
  			}
  			var tmpcheck = row.value["$_#_@_id"]
  			if(!tmpcheck) {
  				tmpcheck = setTimeout(function(){});
  			}
  			if(gridBrowser.isIE8){
  				//var	htmlStr = '<div style="width:' + this.multiSelectWidth + 'px;' + displayStr + '" class="u-grid-content-multiSelect " ><input class="u-grid-multi-input" id="checkbox'+tmpcheck+'" type="checkbox" value="1" ></div>'
  				var	htmlStr = '<div style="width:' + this.multiSelectWidth + 'px;' + displayStr + '" class="u-grid-content-multiSelect " ><span class="u-grid-checkbox-outline" id="checkbox'+tmpcheck+'" value="1"><span class="u-grid-checkbox-tick-outline"></span></span></div>'
  			}else{
  				//var htmlStr = '<div style="width:' + this.multiSelectWidth + 'px;' + displayStr + '" class="u-grid-content-multiSelect checkbox check-success" ><input class="u-grid-multi-input" id="checkbox'+tmpcheck+'" type="checkbox" value="1" ><label for="checkbox'+tmpcheck+'"></label></div>'
  				var htmlStr = '<div style="width:' + this.multiSelectWidth + 'px;' + displayStr + '" class="u-grid-content-multiSelect checkbox check-success" ><span class="u-grid-checkbox-outline" id="checkbox'+tmpcheck+'" value="1"><span class="u-grid-checkbox-tick-outline"></span></span></div>'
  			}
  			return htmlStr;
  		}