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DHTML CSS+JavaScript设计网页链接提示ToolTips

2011-11-21 15:55 323 查看
<html>
<head>
<style type="text/css">
/**//* YOU CAN REMOVE THIS PART */
body{
background-image:url('http://images.cnblogs.com/heading3.gif');
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;
}

/**//* END PART YOU CAN REMOVE */

#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;/**//* Rounded edges in Firefox */
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;/**//* Rounded edges in Firefox */
}
</style>
<SCRIPT type="text/javascript">
/**//************************************************************************************************************
(C) www.dhtmlgoodies.com, October 2005

This is a script from www.dhtmlgoodies.com. You will find this and a lot of other scripts at our website.

Updated:
March, 11th, 2006 - Fixed positioning of tooltip when displayed near the right edge of the browser.
April, 6th 2006, Using iframe in IE in order to make the tooltip cover select boxes.

Terms of use:
You are free to use this script as long as the copyright message is kept intact. However, you may not
redistribute, sell or repost it without our permission.

Thank you!

www.dhtmlgoodies.com
Alf Magne Kalleland

************************************************************************************************************/
var dhtmlgoodies_tooltip =false;
var dhtmlgoodies_tooltipShadow =false;
var dhtmlgoodies_shadowSize =4;
var dhtmlgoodies_tooltipMaxWidth =700;
var dhtmlgoodies_tooltipMinWidth =200;
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';

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;    // Reset style width if it's set
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) {    /**//* Exceeding max width of tooltip ? */
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>Roll your mouse over the links in the text below</h1>
<P>Splendida porro oculi <a href="#" onmouseout="hideTooltip()" onmouseover="showTooltip(event,'This is a tooltip with a transparent shadow effect. Can you see the letters underneath the shadow?');return false">Roll over me</a> uitantque tueri. Splendida porro oculi fugitant uitantque tueri.
</P>
</body>
</html>
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