Anyone know how to double up a for loop in combo with an array?

I need to use both arrays, can this be done in the same for loop.

code below:-

/Store all my chartered areas in an array/
countries = new Array(“cr11”, “cr13”, “cr16”, “cr20”)
captions = new Array(“morocco”, “this”, “that”, “here”)

//for (var i = 0; i < countries.length; i++){

for (var i = 0; i < countries.length; i++) {
	
		elements.worldmap[countries*].onRollOver = function() {
		elements.caption._visible = true;
		elements.caption.captiontext = captions[2]
		Mouse.hide()
		_root.x = 1;
		}

	    elements.worldmap[countries*].onRollOut = function() {
		elements.caption._visible = false;
		elements.caption.captiontext = ""
		Mouse.show()
		}
}