// JavaScript Document


function hidediv(divtohide) {
	document.getElementById(divtohide).style.display = 'none';
}

function showdiv(divtoshow) {
	document.getElementById(divtoshow).style.display = '';
} 

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		imageNo0 = newImage("images/menuAmpl.png");
		imageNo1 = newImage("images/menuAmpd.png");
		imageNo2 = newImage("images/menuAmpo.png");
		preloadFlag = true;
	}
}


	function changeRoom(divtoshow){
		
		hidediv('div1');
		hidediv('div2');
		hidediv('div3');
		hidediv('div4');
		hidediv('div5');
		hidediv('div6');
		hidediv('div7');
		hidediv('div8');
		hidediv('div9');
		
		showdiv(divtoshow);
	}
	
function hidediv(divtohide) {
	document.getElementById(divtohide).style.display = 'none';
}

function showdiv(divtoshow) {
	document.getElementById(divtoshow).style.display = '';
}