Código PHP:
<div id="palabra1"></div>
<script type="text/javascript">
var indice=0;
var color=new Array();
color[0]="Rojo";
color[1]="Naranja";
color[2]="Azul";
color[3]="Negro";
color[4]="Naranja";
color[5]="Rosa";
color[6]="Morado";
color[7]="Amarillo";
var _colorTemp=new Array();
Array.prototype.shuffle = function() {
var len = this.length;
var i = len;
while (i--) {
var p = parseInt(Math.random()*len);
var t = this[i];
this[i] = this[p];
this[p] = t;
}
};
transicion=1000;
function rotar() {
if (!_colorTemp.length) {
_colorTemp=color.slice();
_colorTemp.shuffle();
}
document.getElementById("palabra1").innerHTML =_colorTemp.shift();
setTimeout(function(){rotar()},transicion);
}
rotar();
</script>