var i = 0;
var j = 0;
var title;
var titlelen;
var k;

function scrollControl() {
   scrollTitle();
   if(j < titlelen){
    clearTimeout(k);
   }
   j=j+50;
   k=setTimeout("scrollControl();",0)
}

function scrollTitle() {
    var s = title.substring(0 ,i);
    document.title = s;
    i=i+50;
}

function setTitle(s) {
	title = s;
	titlelen = title.length;
	scrollControl();
}