Problem with numbers in text field

1

I’m making a video player and i’m having some trouble displaying ns.time in a textbox:


// Scrub
var scrub_btn:scrubBtn = new scrubBtn();
loader_mc.addChild(scrub_btn);
scrub_btn.y = -8;

var amountLoaded:Number;
var timeInt = setInterval(vS, 100);

function vS(){
	amountLoaded = ns.bytesLoaded / ns.bytesTotal;
	scrub_btn.x = ns.time / duration * 296;
	controls_mc.text_txt.text = ns.time;
}

the last line is pretty much what i’m trying to do, and this is the error i get:
1067: Implicit coercion of a value of type Number to an unrelated type String.