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var yourtext="ya'r my bitch";
var messLength=yourtext.length;
var initcolor="black";
var yourcolor="red";
var speed=150;
var i;
var j=0;
document.write("<h1><font color='"+initcolor+"'>");
for (i=0;i<messLength;i++){
document.write("<span id='yourid"+i+"'>"+yourtext.charAt(i)+"</span>"); }document.write("</font></h1>");
function colorit(){var idd="yourid"+j;
if (j<messLength){
document.getElementById(idd).style.color=yourcolor;j++}
else {j=0;
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var newidd="yourid"+i;
document.getElementById(newidd).style.color=initcolor; } } }
function doit(){timer=setInterval("colorit()",speed)}
window.onload=doit;
</script>