Altering this?

[psokarovski]

function func1() {

this.val = 1
}

function func2() {

this.getVal = function() {
return this.val
}
}

var inst1 = new func1();
var inst2 = new func2();
inst2.getVal();  //should return 1

So the point is how can i change the object that this refers to?