【JavaScript/CSS】鼠标mouseover时文字提示

//方法定义
Ctrip.tooltip = function(sel){
                        var tip = document.createElement('div');
                        tip.id = "titleTip";
                        tip.innerHTML = '<b class="tri_t"></b><div >;
                        var ori = '';
                        var hideTimer = '';
                        var isTrigger = false;
                        document.body.appendChild(tip);
                        sel.bind('mouseover',function(e){
                                        ori = this.title;
                                        this.title = '';
                                        if(ori != ''){
                                                $('#contentTip').html(ori);
                                                var ofTop = $(this).offset().top + 22;
                                                var ofLeft = $(this).offset().left;
                                                $('#titleTip')[0].style.top = ofTop +'px';
                                                $('#titleTip')[0].style.left = ofLeft +'px';
                                                $('#titleTip').css('display','block');
                                        }
                                        /*$('#titleTip').bind('mouseout',function(e){
                                                console.log('trigger222');
                                                var self = $(this);
                                                setTimeout(function(){
                                                        self.hide();
                                                },500)
                                        })*/
                                        e.preventDefault();
                        })
                        sel.bind('mouseout',function(e){
                                this.title = ori;
                                        $('#titleTip').hide();
                                        isTrigger= false;
 
                        })
 
 
 
                }
 
//方法使用
Ctrip.tooltip($('.icon_desc_text'));
 
//样式文件
#titleTip {padding:5px; border: 1px solid #67A1E2;width:200px;position:absolute;display:none;z-index:100;background:#fff;}
.tri_t{position: absolute;width: 16px;height: 16px;background-image: url(http://pic.ctrip.com/common/un_jmp_tri.png);background-position: -32px 0;background-repeat: no-repeat;
overflow: hidden;margin-top: -12px; left: 0px; }