Edit in JSFiddle

this.luckshim = "window.luckshim";

var obj = {
	luckshim : "obj.luckshim"
};

document.writeln("1: " + this.luckshim); //window.luckshim

setTimeout(function(){
	document.writeln("2: " + this.luckshim); //obj.luckshim
}.bind(obj), 1000);

setTimeout(function(){
	document.writeln("3: " + this.luckshim); //window.luckshim
}, 1000);

<form>

</form>