function menuUpsAndDowns(){
	var tgtE = document.getElementById('menu_container');
	var elevatorID;
	var elevator;
	if(tgtE.offsetTop >= 251){
		var btm = 0;		
		var condition = "up";
	}else{
		var btm = 130;		
		var condition = "dn";
	}
	elevatorID = setInterval(elevator = function(){
		if(condition == "dn"){
			(btm <= 0) ? clearInterval(elevatorID) : btm-=5;
		}else{
			(btm >= 130) ? clearInterval(elevatorID) : btm+=5;
		}
		tgtE.style.bottom = btm + "px";
	}, 1);
	delete tgtE;
	delete elevatorID;
	delete elevator;
	delete btm;
}

function swapImg(c,i){
	var imgContainer = document.getElementById(c);
	imgContainer.style.display="inline";
	imgContainer.src = "/.content/images/"+i+".png";
}