如何丰富alt属性的显示效果- Javascript

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Javascript 中的如何丰富alt属性的显示效果

出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-09-12 浏览: 355 ::

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键盘元素的控制小方块的移动效果鼠标移动到某个单元格上后，整个列都变色的实现方法

IE默认会给带alt属性图片和带title的链接一个浮动显示

点击运行可以看到效果:
[Ctrl+A 全选提示:你可先修改部分代码,再按运行]

很多朋友觉得不好看或者功能不丰富想改改，搜集了几种办法大家研究下

点击运行可以看到效果:

[Ctrl+A 全选提示:你可先修改部分代码,再按运行]

点击运行可以看到效果:

[Ctrl+A 全选提示:你可先修改部分代码,再按运行]

点击运行可以看到效果:

<html>
<head> <script language="javascript">
var tipTimer;
function locateObject(n, d) { //v3.0
var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=locateObject(n,d.layers[i].document); return x;
}
function hideTooltip(object)
{
if (document.all)
{
locateObject(object).style.visibility="hidden"
locateObject(object).style.left = 1;
locateObject(object).style.top = 1;
return false
}
else if (document.layers)
{
locateObject(object).visibility="hide"
locateObject(object).left = 1;
locateObject(object).top = 1;
return false
}
else
return true
}
function showTooltip(object,e, tipContent, backcolor, bordercolor, textcolor, displaytime)
{
window.clearTimeout(tipTimer)
if (document.all)
{
locateObject(object).style.top=document.body.scrollTop+event.clientY+20
locateObject(object).innerHTML='<table style="font-family: Verdana,Tahoma, Arial, Helvetica, sans-serif; font-size: 11px; border: '+bordercolor+'; border-style: solid; border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; background-color: '+backcolor+'" width="10" border="0" cellspacing="1" cellpadding="1"><tr><td nowrap><font style="font-family: Verdana,Tahoma, Arial, Helvetica, sans-serif; font-size: 11px; color: '+textcolor+'">'+unescape(tipContent)+'</font></td></tr></table> '
if ((e.x + locateObject(object).clientWidth) > (document.body.clientWidth + document.body.scrollLeft))
{
locateObject(object).style.left = (document.body.clientWidth + document.body.scrollLeft) - locateObject(object).clientWidth-10;
}
else
{
locateObject(object).style.left=document.body.scrollLeft+event.clientX
}
locateObject(object).style.visibility="visible"
tipTimer=window.setTimeout("hideTooltip('"+object+"')", displaytime);
return true;
}
else if (document.layers)
{
locateObject(object).document.write('<table width="10" border="0" cellspacing="1" cellpadding="1"><tr bgcolor="'+bordercolor+'"><td><table width="10" border="0" cellspacing="0" cellpadding="2"><tr bgcolor="'+backcolor+'"><td nowrap><font style="font-family: Verdana,Tahoma, Arial, Helvetica, sans-serif; font-size: 11px; color: '+textcolor+'">'+unescape(tipContent)+'</font></td></tr></table></td></tr></table>')
locateObject(object).document.close()
locateObject(object).top=e.y+20
if ((e.x + locateObject(object).clip.width) > (window.pageXOffset + window.innerWidth))
{
locateObject(object).left = window.innerWidth - locateObject(object).clip.width-10;
}
else
{
locateObject(object).left=e.x;
}
locateObject(object).visibility="show"
tipTimer=window.setTimeout("hideTooltip('"+object+"')", displaytime);
return true;
}
else
{
return true;
}
}
</script> </head> <body>
<div id="dHTMLToolTip" style="position: absolute; visibility: hidden; width:10; height: 10; z-index: 1000; left: 0; top: 0"></div>
<span onMouseOver="showTooltip('dHTMLToolTip',event, '文字提示信息部分
带图片的<img src=http://www.blueidea.com/img/common/logo.gif>', '#fffff2','#000000','#000000','20000')" onMouseOut="hideTooltip('dHTMLToolTip')">点这里</span>
</body>
<html>

[Ctrl+A 全选提示:你可先修改部分代码,再按运行]

点击运行可以看到效果:

<DIV ID="DIV" STYLE="position:absolute; top:190px; left:100px; width:440px; height:160px; padding:10px; font:bold 13pt verdana; color:white; filter:progid:DXImageTransform.Microsoft.Gradient(GradientType=0, StartColorStr='#0000FF', EndColorStr='#000000')">
<style type="text/css">
.link{font-family:verdana,arial,helvetica; font-size:8pt; color:#003399; font-weight:normal}
.link:hover{font-family:verdana,arial,helvetica; font-size:8pt; color:#0099FF; font-weight:normal}
.prem_hint{font-family:verdana,arial,helvetica; font-size:8pt; color:#ffffff; font-weight:normal}
.header{font-family:arial,verdana,helvetica; font-size:20pt; color:#ffff00; font-weight:bold}
</style>
<script language="javascript">
// Location of this script:
// http://www.geocities.com/e_i_search/premshree/pub/scripts/JS/link_hint_scroller.htm
//*********************************************
//* Link Hint Scroller 1.0 *
//* This script when you move your mouse over *
//* displays a scrolling hint *
//* (c) Premshree Pillai, *
//* http://qik.cjb.net *
//* E-mail : premshree@hotmail.com *
//* Use the script freely as long as this *
//* message is intact *
//*********************************************
window.onerror = null; var bName = navigator.appName; var bVer = parseInt(navigator.appVersion); var NS4 = (bName == "Netscape" && bVer >= 4); var IE4 = (bName == "Microsoft Internet Explorer" && bVer >= 4); var NS3 = (bName == "Netscape" && bVer < 4); var IE3 = (bName == "Microsoft Internet Explorer" && bVer < 4); var scroll_length = 150; //The scroll length var time_length =50; //Scroll speed var begin_pos = 100; //Start position of scroll hint var i; var j;
if (NS4 || IE4) { if (navigator.appName == "Netscape") { layerStyleRef="layer."; layerRef="document.layers"; styleSwitch=""; }else{ layerStyleRef="layer.style."; layerRef="document.all"; styleSwitch=".style"; }
}
//SCROLL
function Scroll(layerName){
if (NS4 || IE4) { if (NS4 || IE4) { if(i<(begin_pos+scroll_length)){ eval(layerRef+'["'+layerName+'"]'+ styleSwitch+'.visibility="visible"'); eval(layerRef+'["'+layerName+'"]'+ styleSwitch+'.left="'+i+'"'); i++; j++; if(i==j){ setTimeout("Scroll('"+layerName+"')",time_length);} } } }
}
//STOP SCROLLING
function StopScroll(layerName)
{
i=begin_pos+scroll_length; eval(layerRef+'["'+layerName+'"]'+ styleSwitch+'.left="'+i+'"'); hideLayer(layerName);
}
function reset()
{
i=begin_pos;
j=i;
}
// HIDE HINT
function hideLayer(layerName){ if (NS4 || IE4) { eval(layerRef+'["'+layerName+'"]'+ styleSwitch+'.visibility="hidden"'); } }
</script>
<center>
<span class="header">Link Hint Scroller 1.0</span>
<a href="#" class="link" onmouseover="javascript:reset();Scroll('prem_hint');" onmouseout="javascript:StopScroll('prem_hint');">Move your mouse over</a>
</center>
<div id="prem_hint" style="position:relative; visibility:hidden" class="prem_hint">
This is the hint or description for the above link!
</div>
</DIV>

[Ctrl+A 全选提示:你可先修改部分代码,再按运行]

键盘元素的控制小方块的移动效果鼠标移动到某个单元格上后，整个列都变色的实现方法

Javascript 中的 如何丰富alt属性的显示效果

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Javascript 中的如何丰富alt属性的显示效果