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This JavaScript makes JavaScript link change color when user move mouse over it. In addition, you just need put this JavaScript code into your web page, the effect automatically checks objects which are JavaScript link before affected. Very nice.

Label: Fading Link onMouseover

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<script type="text/javascript">
/*****************************************\
||       Fade Script Version 3.1         ||
||   http://nguyentieu.net    ||
||            (c) July 2003              ||
|| _____________________________________ ||
|| Created by:                           ||
|| Nguyentieu    > nguyentieu.net          ||
|| _____________________________________ ||
|| auto-start Color by myself          ||
|| nguyentieu@nguyentieu.net                      ||
|| _____________________________________ ||
|| uniqueID upgrade by be-yeu         ||
|| http://www.be-yeu.com             ||
|| _____________________________________ ||
|| Color conversion from decimal to      ||
|| hex (dehexize function) by:           ||
|| AT > YIM: tieu_con         ||
|| _____________________________________ ||
|| Fade, hex, setColor functions by:     ||
|| be-yeu > be-yeu.com  ||
|| _____________________________________ ||
|| domouseover/out based on scripts by   ||
|| NT  > www.nguyentieu.net ||
||                                       ||
\*****************************************/

/*************
**** <config>
**/

fadeColor = "#FFFFCC";  // color to fade to
//fadeColor = "#000000";
stepIn = 21; // delay when fading in
stepOut = 35; // delay when fading out

/* set to true or false; true will
** cause all links to fade automatically
** (you won't need to add class="fade")
***/
autoFade = true;  

/* set to true or false; true will cause all CSS
** classes with "fade" in them to fade onmouseover
***/
sloppyClass = true;

/* set to true or false; true will make the script
** work for Macs (IE 5+), but you will have to give
** a name (name="blah") to each link that you want
** to fade.
***/
macCompat = false;

/** 
**** </config>
**************/
hexa = new makearray(16);
for(var i = 0; i < 10; i++)
    hexa[i] = i;
hexa[10]="a"; hexa[11]="b"; hexa[12]="c";
hexa[13]="d"; hexa[14]="e"; hexa[15]="f";

document.onmouseover = domouseover;
document.onmouseout = domouseout;

fadeColor = dehexize(fadeColor.toLowerCase());

var fadeId = new Array();

function dehexize(Color){
	var colorArr = new makearray(3);
	for (i=1; i<7; i++){
		for (j=0; j<16; j++){
			if (Color.charAt(i) == hexa[j]){
				if (i%2 !=0)
					colorArr[Math.floor((i-1)/2)]=eval(j)*16;
				else
					colorArr[Math.floor((i-1)/2)]+=eval(j);
			}
		}
	}
	return colorArr;
}

function domouseover() {
	if(document.all){
		var srcElement = event.srcElement;
		if ((srcElement.tagName == "A" && autoFade && srcElement.className != "nofade") || srcElement.className == "fade" || (sloppyClass && srcElement.className.indexOf("fade") != -1)) {
				if (!srcElement.startColor) {
					srcElement.startColor = (srcElement.style.color)? srcElement.style.color: srcElement.currentStyle.color;
					srcElement.startColor = dehexize(srcElement.startColor.toLowerCase());
				}
				var link = (macCompat? srcElement.name: srcElement.uniqueID);
				if (link) fade(srcElement.startColor,fadeColor,link,stepIn);				
				else if (macCompat) alert("Error: Mac Compatility mode enabled, but link has no name.");
		}
	}
}

function domouseout() {
	if (document.all){
		var srcElement = event.srcElement;
		if ((srcElement.tagName == "A" && autoFade && srcElement.className != "nofade") || srcElement.className == "fade" || (sloppyClass && srcElement.className.indexOf("fade") != -1)) {
			var link = (macCompat? srcElement.name: srcElement.uniqueID);
			if (link) fade(fadeColor,srcElement.startColor,link,stepIn);
		}
	}
}

function makearray(n) {
    this.length = n;
    for(var i = 1; i <= n; i++)
        this[i] = 0;
    return this;
}

function hex(i) {
    if (i < 0)
        return "00";
    else if (i > 255)
        return "ff";
    else
       return "" + hexa[Math.floor(i/16)] + hexa[i%16];
}

function setColor(r, g, b, element) {
      var hr = hex(r); var hg = hex(g); var hb = hex(b);
      element.style.color = "#"+hr+hg+hb;
}

function fade(s,e,element,step) {
	var sr = s[0]; var sg = s[1]; var sb = s[2];
	var er = e[0]; var eg = e[1]; var eb = e[2];
	
	if (fadeId[0] != null && fade[0] != element && eval(fadeId[0])) {
		var orig = eval(fadeId[0]);
		setColor(orig.startColor[0],orig.startColor[1],orig.startColor[2],orig);
		var i = 1;
		while(i < fadeId.length) {
			clearTimeout(fadeId[i]);
			i++;
		}
	}
		
	for(var i = 0; i <= step; i++) {
		fadeId[i+1] = setTimeout("setColor(Math.floor(" +sr+ " *(( " +step+ " - " +i+ " )/ " +step+ " ) + " +er+ " * (" +i+ "/" +
			step+ ")),Math.floor(" +sg+ " * (( " +step+ " - " +i+ " )/ " +step+ " ) + " +eg+ " * (" +i+ "/" +step+
			")),Math.floor(" +sb+ " * ((" +step+ "-" +i+ ")/" +step+ ") + " +eb+ " * (" +i+ "/" +step+ ")),"+element+");",i*step);
	}
	fadeId[0] = element;
}
</script>
	<!--
    	This script downloaded from www.JavaScriptBank.com
    	Come to view and download over 2000+ free javascript at www.JavaScriptBank.com
	-->

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	<!--
    	This script downloaded from www.JavaScriptBank.com
    	Come to view and download over 2000+ free javascript at www.JavaScriptBank.com
	-->