function initArray() {

this.length = initArray.arguments.length;
for (var i = 0; i < this.length; i++) {
this[i] = initArray.arguments[i];
}
}

var ctext = "This message changes color !!!"
var speed = 1000

var x = 0

var color = new initArray("red",
"blue",
"green",
"black"
);

if(navigator.appName == "Netscape") {
document.write('<layer id="c">'+ctext+'</layer><br>');
}

if (navigator.appVersion.indexOf("MSIE") != -1){
document.write('<div id="c">'+ctext+'</div>');
}

function chcolor(){

if(navigator.appName == "Netscape") {
document.c.document.write('<font color="'+color[x]+'">'
+ctext+'</font>');
document.c.document.close();
}

else if (navigator.appVersion.indexOf("MSIE") != -1){
document.all.c.style.color = color[x];
}

(x < color.length-1) ? x++ : x=0;
}

setInterval("chcolor()",1000)
//-->
</script>