// JavaScript Document

function initMove(){
	
	if (currentPosition == cnst_initialPosition || currentPosition == finalDestination){
		counter =cnst_totalCount; // number of times to move the div;
		if (currentPosition == cnst_initialPosition ){
			myTimer = setInterval('moveItDown()', delay);	
		}else{
			myTimer = setInterval('moveItUp()', delay);
		}
	}
}

function moveItDown() {
	currentPosition = currentPosition + moveAmount
	document.getElementById("menu").style.top = currentPosition + "px";
	if (--counter < 0 && myTimer != null)
  	clearInterval(myTimer);
}

function moveItUp() {
	currentPosition = currentPosition - moveAmount
	document.getElementById("menu").style.top = currentPosition + "px";
	if (--counter < 0 && myTimer != null)
  	clearInterval(myTimer);
}