鼠标滑过出现预览的大图提示效果_javascript技巧

$(function () {
var x = 10;
var y = 20;
$("a.tooltip").mouseover(function (e) {
this.myTitle = this.title;
this.title = "";
var imgTitle = this.myTitle ? "
" + this.myTitle : "";
var tooltip = "" + imgTitle + ""; //创建元素
$("body").append(tooltip); //将它追加到文本中
$("#tooltip")
.css({
"top": (e.pageY + y) + "px",
"left": (e.pageX + x) + "px"

}).show("fast"); //设置x坐标和y坐标，并且显示
}).mouseout(function () {
this.title = this.myTitle;
$("#tooltip").remove(); //移除
}).mousemove(function (e) {
$("#tooltip")
.css({
"top": (e.pageY + y) + "px",
"left": (e.pageX + x) + "px"
});
});
})