记录下，以备将来用到
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>无标题页</title><script type="text/javascript" src="jquery-1.4.2.min.js" ></script><script type="text/javascript"> function ShowTip(event,obj,message) { var xOffset = -10; // x distance from mouse var yOffset = 10; // y distance from mouse //obj.style.top = (event.clientX + yOffset)+"px"; //obj.style.left = (event.clientY + xOffset)+"px"; //获取元素 $(obj).width(); //获取元素height：$(obj).height() //获取元素位置：$(obj).position().top和$(obj).offset().top $('body').append( '<div id="tipmessage">'+message+'</div>'); $('div#tipmessage').css("top", $(obj).position().top+$(obj).height() + "px").css("left", $(obj).position().left+"px").fadeIn("slow"); } function HideTip() { $("div#tipmessage").fadeOut("slow").remove(); } </script> <style type="text/css"> #tipmessage { display:none; z-index:1000; border:1px solid #448833; position:absolute; background:#ffffff; max-200px; max-height:30px; padding:5px 10px; }</style></head><body><a href="#" onmouseover="ShowTip(event,this,'欢迎访问脚本之家')" onmouseout="HideTip()">Tip</a></body></html>