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View Full Version : Problem with JS in Opera


Fiasst
12 Jan 2007, 03:36 PM
Hi, This link fade script doesnt work at all in Opera. Any ideas why?

Thanks!

Example Page:



<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Realworks Link Test</title>
<script type="text/javascript" src="js/fade.js"></script>
<style type="text/css">
body {
margin: 10px; padding: 0}
#wrapper {
width: 250px; float: left; display: block}
.fade a, .fade a:hover {
font: 0.9em Arial, Helvetica, sans-serif;
color: #B7B7B7;
text-decoration: none;
padding: 1px 6px 1px 6px;
width: 100%;
display: block}
a:hover { color: #FF6600}
</style>
</head>
<body>
<div id="wrapper">
<span class="fade">
<a href="a#" class="fade">Link</a>
<a href="b#" class="fade">Link</a>
<a href="c#" class="fade">Link</a>
</span>
</div>
</body>
</html>


The Javascript


startColor = "#b7b7b7";
endColor = "#ff6600";
stepIn = 20;
stepOut = 50;
autoFade = false;
sloppyClass = false;

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";

var version = parseInt(navigator.appVersion)
var appName = navigator.appName
var ns4 = version>=4 && appName=="Netscape"

if (ns4) { //Netscape 4+
document.onmouseover = doN4mouseover;
document.onmouseout = doN4mouseout;
} else { //other
document.onmouseover= domouseover;
document.onmouseout= domouseout;
}

startColor = dehexize(startColor.toLowerCase());
endColor = dehexize(endColor.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 == "fade" || (sloppyClass && srcElement.className.indexOf("fade") != -1))
fade(startColor,endColor,srcElement.uniqueID,stepIn);
}
}

function domouseout() {
if (document.all){
var srcElement = event.srcElement;
if ((srcElement.tagName == "A" && autoFade) || srcElement.className == "fade" || (sloppyClass && srcElement.className.indexOf("fade") != -1))
fade(endColor,startColor,srcElement.uniqueID,stepOut);
}
}
function doN4mouseover(event) {
var srcElement=event.target;
if ((srcElement.tagName == "A" && autoFade) || srcElement.className == "fade" || (sloppyClass && srcElement.className.indexOf("fade") != -1))
nfade(startColor,endColor,srcElement,stepIn);
}

function doN4mouseout(event) {
var srcElement = event.target;
if ((srcElement.tagName == "A" && autoFade) || srcElement.className == "fade" || (sloppyClass && srcElement.className.indexOf("fade") != -1))
nfade(endColor,startColor,srcElement,stepOut);
}

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){
setColor(sr,sg,sb,eval(fadeId[0]));
var i = 1;
while(i < fadeId.length){
clearTimeout(fadeId[i]);
i++;
}
}
//MSIE - setup timeouts using strings
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;
}
function nfade(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){
setColor(sr,sg,sb,eval(fadeId[0]));
var i = 1;
while(i < fadeId.length){
clearTimeout(fadeId[i]);
i++;
}
}
//Netscape can call SetTimeout using objects
for(var i = 0; i <= step; i++) {
fadeId[i+1] = setTimeout(
setColor,
i*step,
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
);
}
fadeId[0] = element;
}