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JS实现文字链接感应鼠标淡入淡出改变颜色的方法
简介本文实例讲述了JS实现文字链接感应鼠标淡入淡出改变颜色的方法。分享给大家供大家参考。具体实现方法如下：复制代码 代码如下:JS实现</div>
<div class="news_infos"><div id="MyContent"><p>本文实例讲述了JS实现文字链接感应鼠标淡入淡出改变颜色的方法。分享给大家供大家参考。具体实现方法如下：</p>
<p><U>复制代码</U> 代码如下:<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><br>
<HTML><br>
<HEAD><br>
<TITLE>JS实现文字链接感应鼠标淡入淡出改变颜色</TITLE><br>
</HEAD><br>
<BODY><br>
<script language="javascript" type="text/javascript"><br>
startColor = "#671700"; // 定义链接颜色<br>
endColor = "#D8D1C5"; // 定义要渐变到最后的颜色<br>
stepIn = 17; <br>
stepOut = 23; <br>
/*<br>
定义是否让所有的文本链接自动渐变，true为是，false为否<br>
*/<br>
autoFade = true; <br>
/*<br>
在这里定义css样式里的类class：fade，如果为true，那么你要将要渐变的链接上加上此fade样式<br>
*/<br>
sloppyClass = false; <br>
hexa = new makearray(16);<br>
for(var i = 0; i < 10; i++)<br>
hexa[i] = i;<br>
hexa[10]="a"; hexa[11]="b"; hexa[12]="c";<br>
hexa[13]="d"; hexa[14]="e"; hexa[15]="f";<br>
document.onmouseover = domouseover;<br>
document.onmouseout = domouseout;<br>
startColor = dehexize(startColor.toLowerCase());<br>
endColor = dehexize(endColor.toLowerCase());<br>
var fadeId = new Array();<br>
function dehexize(Color){<br>
var colorArr = new makearray(3);<br>
for (i=1; i<7; i++){<br>
for (j=0; j<16; j++){<br>
if (Color.charAt(i) == hexa[j]){<br>
if (i%2 !=0)<br>
colorArr[Math.floor((i-1)/2)]=eval(j)*16;<br>
else<br>
colorArr[Math.floor((i-1)/2)]+=eval(j);<br>
}<br>
}<br>
}<br>
return colorArr;<br>
}<br>
function domouseover() {<br>
if(document.all){<br>
var srcElement = event.srcElement;<br>
if ((srcElement.tagName == "A" && autoFade) || srcElement.className == "fade" || (sloppyClass && srcElement.className.indexOf("fade") != -1))<br>
fade(startColor,endColor,srcElement.uniqueID,stepIn); <br>
}<br>
}<br>
function domouseout() {<br>
if (document.all){<br>
var srcElement = event.srcElement;<br>
if ((srcElement.tagName == "A" && autoFade) || srcElement.className == "fade" || (sloppyClass && srcElement.className.indexOf("fade") != -1))<br>
fade(endColor,startColor,srcElement.uniqueID,stepOut);<br>
}<br>
}<br>
function makearray(n) {<br>
this.length = n;<br>
for(var i = 1; i <= n; i++)<br>
this[i] = 0;<br>
return this;<br>
}<br>
function hex(i) {<br>
if (i < 0)<br>
return "00";<br>
else if (i > 255)<br>
return "ff";<br>
else<br>
return "" + hexa[Math.floor(i/16)] + hexa[i%16];}<br>
function setColor(r, g, b, element) {<br>
var hr = hex(r); var hg = hex(g); var hb = hex(b);<br>
element.style.color = "#"+hr+hg+hb;<br>
}<br>
function fade(s,e, element,step){<br>
var sr = s[0]; var sg = s[1]; var sb = s[2];<br>
var er = e[0]; var eg = e[1]; var eb = e[2];<br>
<br>
if (fadeId[0] != null && fade[0] != element){<br>
setColor(sr,sg,sb,eval(fadeId[0]));<br>
var i = 1;<br>
while(i < fadeId.length){<br>
clearTimeout(fadeId[i]);<br>
i++;<br>
}<br>
}<br>
for(var i = 0; i <= step; i++) {<br>
fadeId[i+1] = setTimeout("setColor(Math.floor(" +sr+ " *(( " +step+ " - " +i+ " )/ " +step+ " ) + " +er+ " * (" +i+ "/" +<br>
step+ ")),Math.floor(" +sg+ " * (( " +step+ " - " +i+ " )/ " +step+ " ) + " +eg+ " * (" +i+ "/" +step+<br>
")),Math.floor(" +sb+ " * ((" +step+ "-" +i+ ")/" +step+ ") + " +eb+ " * (" +i+ "/" +step+ ")),"+element+");",i*step);<br>
}<br>
fadeId[0] = element;<br>
}<br>
</script><br>
<p><a href="https://www.jb51.net">鼠标放在此文字链接上查看预览效果</a></p><br>
</BODY><br>
</HTML></p>
<p>希望本文所述对大家的javascript程序设计有所帮助。</p></div>
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