// JavaScript Document
<!-- Paste this code into an external JavaScript file named: rainbowLink.js  -->

/* This script and many more are available free online at
The JavaScript Source :: http://javascript.internet.com
Created by: Thái Cao Phong :: http://www.JavaScriptBank.com
 */

 var timerID,
       srcElemActive,
       count = 0,
       oldColor;

var clrArray = new Array(
               'D0CBFE', '8C80FD', '5543FC', '1B04E3', // blue
               'E7FFE6', 'B7FFB3', '80FF79', '0AC400', // green
               'FFD6D5', 'FF9693', 'FF3D37', 'EA0600' // red
);

var ie = navigator.appName=='Microsoft Internet Explorer'?true:false,
       op = window.opera?true:false,
       ns = navigator.vendor?true:false;


function ChangeColor() {
        if(srcElemActive) srcElemActive.style.color = '#' + clrArray[count++];
       if(count == (clrArray.length - 1)) count = 0;
}

// makeRainbow function
function makeRainbow(evt) {
       if(op) return;
       var srcElem = getObject(evt);
       var temp = "";
       if(srcElem.tagName == "A" && srcElem.href != '') {
               srcElemActive = srcElem;
               oldColor = srcElem.style.color;
               timerID = setInterval("ChangeColor()", 200);
       }
       return true;
}

// stopRainbow function
function stopRainbow(evt) {
       var srcElem = getObject(evt);
       if(op && srcElem.className != 'rate_item') return;
       if(srcElemActive && srcElem.tagName == "A" && srcElem.href != '') {
               srcElemActive = null;
               srcElem.style.color = oldColor;
               clearInterval(timerID);
       }
}

// getObject function
function getObject(evt) {
       var srcElem;
       if(ie) {
               srcElem = event.srcElement;
       } else {
               srcElem = evt.target;
       }
       return srcElem;
}

document.onmouseover = makeRainbow;
document.onmouseout = stopRainbow;