CSS文字提示效果_文本链接特效

一段结合CSS+JS实现的TITLE文字提示效果，效果还不错，鼠标放到链接文字上会显示一个提示层，总体感觉很好，只是代码有点复杂。

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" mrc="text/html; charset=utf-8" />
<title>CSS文字提示</title>
<style type="text/css" media="screen">

</style>
<script language="JavaScript" type="text/JavaScript">
var qTipTag = "a"; 
var qTipX = -30; 
var qTipY = 25; 
tooltip = {
  name : "qTip",
  offsetX : qTipX,
  offsetY : qTipY,
  tip : null
}
tooltip.init = function () {
  var tipNameSpaceURI = "http://www.w3.org/1999/xhtml";
  if(!tipContainerID){ var tipContainerID = "qTip";}
  var tipContainer = document.getElementById(tipContainerID);
  if(!tipContainer) {
    tipContainer = document.createElementNS ? document.createElementNS(tipNameSpaceURI, "div") : document.createElement("div");
    tipContainer.setAttribute("id", tipContainerID);
    document.getElementsByTagName("body").item(0).appendChild(tipContainer);
  }
  if (!document.getElementById) return;
  this.tip = document.getElementById (this.name);
  if (this.tip) document.onmousemove = function (evt) {tooltip.move (evt)};
  var a, sTitle;
  var anchors = document.getElementsByTagName (qTipTag);
  for (var i = 0; i < anchors.length; i ++) {
    a = anchors[i];
    sTitle = a.getAttribute("title");
    if(sTitle) {
      a.setAttribute("tiptitle", sTitle);
      a.removeAttribute("title");
      a.onmouseover = function() {tooltip.show(this.getAttribute('tiptitle'))};
      a.onmouseout = function() {tooltip.hide()};
    }
  }
}
tooltip.move = function (evt) {
  var x=0, y=0;
  if (document.all) {//IE
    x = (document.documentElement && document.documentElement.scrollLeft) ? document.documentElement.scrollLeft : document.body.scrollLeft;
    y = (document.documentElement && document.documentElement.scrollTop) ? document.documentElement.scrollTop : document.body.scrollTop;
    x += window.event.clientX;
    y += window.event.clientY;
    
  } else {//Good Browsers
    x = evt.pageX;
    y = evt.pageY;
  }
  this.tip.style.left = (x + this.offsetX) + "px";
  this.tip.style.top = (y + this.offsetY) + "px";
}
tooltip.show = function (text) {
  if (!this.tip) return;
  this.tip.innerHTML = text;
  this.tip.style.display = "block";
}
tooltip.hide = function () {
  if (!this.tip) return;
  this.tip.innerHTML = "";
  this.tip.style.display = "none";
}
window.onload = function () {
  tooltip.init ();
}
</script>
</head>
<body>
<h1>CSS 文字提示层</h1>
<p>一段结合CSS+JS实现的TITLE文字提示效果，<a href="/" title="Code By /">鼠标放我这里看看？是不是很酷呢？</a></p>
</body>
</html>

所属频道：文本链接特效/更新时间：2012-12-20

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