Javascript实现带阴影的提示框
当您的鼠标放到某段文字中有链接的文字上时,一个带阴影效果的提示框出现了,激动吧!本代码可以重用,请将JavaScript代码里的函数另存,用到的时候引入。
当您的鼠标放到某段文字中有链接的文字上时,一个带阴影效果的提示框出现了,激动吧!本代码可以重用,请将JavaScript代码里的函数另存,用到的时候引入。
答案:<!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" content="text/html; charset=gb2312" />
<title>Javascript实现带阴影的提示框</title>
<style type="text/css">
body{
background-repeat:no-repeat;
padding-top:85px;
font-family: Trebuchet MS, Lucida Sans Unicode, Arial, sans-serif;
font-size:0.9em;
line-height:130%;
}
h1{
line-height:130%;
}
a{
color: #D60808;
text-decoration:none;
font-weight:bold;
}
a:hover{
border-bottom:1px dotted #317082;
color: #307082;
}
#dhtmlgoodies_tooltip{
background-color:#EEE;
border:1px solid #000;
position:absolute;
display:none;
z-index:20000;
padding:2px;
font-size:0.9em;
-moz-border-radius:6px;
font-family: "Trebuchet MS", "Lucida Sans Unicode", Arial, sans-serif;
}
#dhtmlgoodies_tooltipShadow{
position:absolute;
background-color:#555;
display:none;
z-index:10000;
opacity:0.7;
filter:alpha(opacity=70);
-khtml-opacity: 0.7;
-moz-opacity: 0.7;
-moz-border-radius:6px;
}
</style>
<SCRIPT type="text/javascript">
var dhtmlgoodies_tooltip = false;
var dhtmlgoodies_tooltipShadow = false;
var dhtmlgoodies_shadowSize = 4;
var dhtmlgoodies_tooltipMaxWidth = 200;
var dhtmlgoodies_tooltipMinWidth = 100;
var dhtmlgoodies_iframe = false;
var tooltip_is_msie = (navigator.userAgent.indexOf('MSIE')>=0 && navigator.userAgent.indexOf('opera')==-1 && document.all)?true:false;
function showTooltip(e,tooltipTxt)
{
var bodyWidth = Math.max(document.body.clientWidth,document.documentElement.clientWidth) - 20;
if(!dhtmlgoodies_tooltip){
dhtmlgoodies_tooltip = document.createElement('DIV');
dhtmlgoodies_tooltip.id = 'dhtmlgoodies_tooltip';
dhtmlgoodies_tooltipShadow = document.createElement('DIV');
dhtmlgoodies_tooltipShadow.id = 'dhtmlgoodies_tooltipShadow';
document.body.appendChild(dhtmlgoodies_tooltip);
document.body.appendChild(dhtmlgoodies_tooltipShadow);
if(tooltip_is_msie){
dhtmlgoodies_iframe = document.createElement('IFRAME');
dhtmlgoodies_iframe.frameborder='5';
dhtmlgoodies_iframe.style.backgroundColor='#FFFFFF';
dhtmlgoodies_iframe.src = '#';
dhtmlgoodies_iframe.style.zIndex = 100;
dhtmlgoodies_iframe.style.position = 'absolute';
document.body.appendChild(dhtmlgoodies_iframe);
}
}
dhtmlgoodies_tooltip.style.display='block';
dhtmlgoodies_tooltipShadow.style.display='block';
if(tooltip_is_msie)dhtmlgoodies_iframe.style.display='block';
//http://www.zzzyk.com
var st = Math.max(document.body.scrollTop,document.documentElement.scrollTop);
if(navigator.userAgent.toLowerCase().indexOf('safari')>=0)st=0;
var leftPos = e.clientX + 10;
dhtmlgoodies_tooltip.style.width = null;
dhtmlgoodies_tooltip.innerHTML = tooltipTxt;
dhtmlgoodies_tooltip.style.left = leftPos + 'px';
dhtmlgoodies_tooltip.style.top = e.clientY + 10 + st + 'px';
dhtmlgoodies_tooltipShadow.style.left = leftPos + dhtmlgoodies_shadowSize + 'px';
dhtmlgoodies_tooltipShadow.style.top = e.clientY + 10 + st + dhtmlgoodies_shadowSize + 'px';
if(dhtmlgoodies_tooltip.offsetWidth>dhtmlgoodies_tooltipMaxWidth){
dhtmlgoodies_tooltip.style.width = dhtmlgoodies_tooltipMaxWidth + 'px';
}
var tooltipWidth = dhtmlgoodies_tooltip.offsetWidth;
if(tooltipWidth<dhtmlgoodies_tooltipMinWidth)tooltipWidth = dhtmlgoodies_tooltipMinWidth;
dhtmlgoodies_tooltip.style.width = tooltipWidth + 'px';
dhtmlgoodies_tooltipShadow.style.width = dhtmlgoodies_tooltip.offsetWidth + 'px';
dhtmlgoodies_tooltipShadow.style.height = dhtmlgoodies_tooltip.offsetHeight + 'px';
if((leftPos + tooltipWidth)>bodyWidth){
dhtmlgoodies_tooltip.style.left = (dhtmlgoodies_tooltipShadow.style.left.replace('px','') - ((leftPos + tooltipWidth)-bodyWidth)) + 'px';
dhtmlgoodies_tooltipShadow.style.left = (dhtmlgoodies_tooltipShadow.style.left.replace('px','') - ((leftPos + tooltipWidth)-bodyWidth) + dhtmlgoodies_shadowSize) + 'px';
}
if(tooltip_is_msie){
dhtmlgoodies_iframe.style.left = dhtmlgoodies_tooltip.style.left;
dhtmlgoodies_iframe.style.top = dhtmlgoodies_tooltip.style.top;
dhtmlgoodies_iframe.style.width = dhtmlgoodies_tooltip.offsetWidth + 'px';
dhtmlgoodies_iframe.style.height = dhtmlgoodies_tooltip.offsetHeight + 'px';
}
}
function hideTooltip()
{
dhtmlgoodies_tooltip.style.display='none';
dhtmlgoodies_tooltipShadow.style.display='none';
if(tooltip_is_msie)dhtmlgoodies_iframe.style.display='none';
}
</SCRIPT>
</head>
<body>
<h1>请把鼠标放到颜色高亮的链接上</h1>
<P>想下载更多的高质量免费源码么?那么就请来到<a href="#" onmouseout="hideTooltip()" onmouseover="showTooltip(event,'站长资源库提供编程源代码、常用软件、网页特效代码等资源的下载。');return false">站长资源库</a>者吧,每天都有你需要的学习资源,助您学习之路一路狂奔……
</P>
</body>
</html>
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