text.js

window.onload = function () {
  var r = Raphael("holder", 800, 200),
    str = r.print(180, 100, "86.68.254.163", r.getFont("Bangalore"), 50);
    str.attr({fill: "#f00", opacity:.5, scale: ".05,.05" });
  
  (function(pos){
    var args = arguments;
    if(pos>=str.length) pos = 0;
    str[pos].animate({opacity:1}, 200, function(){
      this.animate({opacity:.5}, 200); // it is not executed why ?
      // this.attr({opacity:.5}) // but this works
      args.callee(pos+1);
    })
  })(0);
};