_global['setTimeout'](this,clearINTERVAL("intervalRANWALK"), 1000);

How do I get this to work?

I create an instance of a class. I call the draw function. Then I call the run function. Therun function calls a function inside called startRANWALK, then that function uses

this.iii = _global['setTimeout'](this, 'intervalpoint', 0);
AS Code:
function intervalpoint():Void{

intervalRANWALK = setInterval(this,'runRANWALK', 33);

}

function runRANWALK():Void{

    trace("||||||||||||||||||||||runRANWALK");

mc._x += Math.cos(randomanlge);

mc._y += Math.sin(randomanlge);

_global['setTimeout'](this,clearINTERVAL("intervalRANWALK"), 1000);

}



function clearINTERVAL(val:String):Void{

    if (val == "intervalRANWALK"){

//I wanted to use val and pass a string of the setinterval but it wont let me.

    clearInterval(intervalRANWALK);

    }

}

so how do I go about getting this to work?