jquery easyui中datagrid工具栏靠右浮动

if(opts.toolbar){
var tb=$("<div class=\"datagrid-toolbar\"></div>").prependTo(_3ae);

var position = $.inArray("->",opts.toolbar);
if(position != -1){
for(var i=0;i<position;i++){
var btn=opts.toolbar[i];
if(btn=="-"){
$("<div class=\"datagrid-btn-separator\"></div>").css("float","left").appendTo(tb);
}else{
var tool=$("<a href=\"javascript:void(0)\"></a>");
tool[0].onclick=eval(btn.handler||function(){
});
tool.css("float","left").appendTo(tb).linkbutton($.extend({},btn,{plain:true}));
}

}
for(var i=position+1;i<opts.toolbar.length;i++){
var btn=opts.toolbar[i];
if(btn=="-"){
$("<div class=\"datagrid-btn-separator\"></div>").css("float","right").appendTo(tb);
}else{
var tool=$("<a href=\"javascript:void(0)\"></a>");
tool[0].onclick=eval(btn.handler||function(){
});
tool.css("float","right").appendTo(tb).linkbutton($.extend({},btn,{plain:true}));
}
} //jquery easyui中datagrid工具栏靠右浮动
}else{
for(var i=0;i<opts.toolbar.length;i++){
var btn=opts.toolbar[i];
if(btn=="-"){
$("<div class=\"datagrid-btn-separator\"></div>").css("float","left").appendTo(tb);
}else{
var tool=$("<a href=\"javascript:void(0)\"></a>");
tool[0].onclick=eval(btn.handler||function(){
});
tool.css("float","left").appendTo(tb).linkbutton($.extend({},btn,{plain:true}));
}
}
}
}