var preloadFlag = false;

// var base = "http://l/messerstilp.com";
var base = "http://www.messerstilp.com";

function preloadImages() {
	if (document.images) {
		
		nav_1On = NewImage(base+'/images/nav/on/nav_1.gif');
		nav_1Off = NewImage(base+'/images/nav/off/nav_1.gif');
		nav_3On = NewImage(base+'/images/nav/on/nav_3.gif');
		nav_3Off = NewImage(base+'/images/nav/off/nav_3.gif');
		nav_5On = NewImage(base+'/images/nav/on/nav_5.gif');
		nav_5Off = NewImage(base+'/images/nav/off/nav_5.gif');
		nav_7On = NewImage(base+'/images/nav/on/nav_7.gif');
		nav_7Off = NewImage(base+'/images/nav/off/nav_7.gif');
		nav_9On = NewImage(base+'/images/nav/on/nav_9.gif');
		nav_9Off = NewImage(base+'/images/nav/off/nav_9.gif');
		nav_11On = NewImage(base+'/images/nav/on/nav_11.gif');
		nav_11Off = NewImage(base+'/images/nav/off/nav_11.gif');
		employmentOn = NewImage(base+'/images/nav/on/employment.gif');
		employmentOff = NewImage(base+'/images/nav/off/employment.gif');

		preloadFlag = true;
	}
}

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

function swapImages (anImage, theNewImage) {
	if (document.images && preloadFlag == true) {
		document.images[anImage].src = eval(theNewImage).src;
	}
}

function turnOn (anImage) {
	if (document.images && preloadFlag == true) {
		document.images[anImage].src = eval(anImage + 'On').src;
	}
}

function turnOff (anImage) {
	if (document.images && preloadFlag == true) {
		document.images[anImage].src = eval(anImage + 'Off').src;
	}
}