function CallThis(){
     var div = $("div");
     div.animate({left: '100px'}, "slow");
     div.animate({fontSize: '3em'}, "slow");
 }

$(document).ready(function(){
      CallThis();
 })

$(document).ready(function(){
     // this block will be executed when the DOM is fully loaded
        var div = $("div");
        div.animate({left: '100px'}, "slow");
        div.animate({fontSize: '3em'}, "slow");

});