/* Generic show/hide function */
function showHide(_levelId) {
	var thisLevel = document.getElementById( _levelId );
	if (thisLevel){
    	if (thisLevel.style.display == "none") {
    		showIt(_levelId);
    	} else {
    		hideIt(_levelId);
    	}
	}
}

/* Generic show script */
function showIt(level){
	var thisLevel = document.getElementById(level);
	if (thisLevel){
	   thisLevel.style.display = "";
	}
}

/* Generic hide script */
function hideIt(level){
	var thisLevel = document.getElementById(level);
	if (thisLevel){
	   thisLevel.style.display = "none";
	}
}