//main navigation

        preload('navhomeoff','images/nav/btn-home-off.gif');

		preload('navhomeovr','images/nav/btn-home-ovr.gif');

		preload('navhomeon','images/nav/btn-home-on.gif');

		

		preload('navrandroff','images/nav/btn-randr-off.gif');

		preload('navrandrovr','images/nav/btn-randr-ovr.gif');

		preload('navrandron','images/nav/btn-randr-on.gif');



		preload('navlocationoff','images/nav/btn-location-off.gif');

		preload('navlocationovr','images/nav/btn-location-ovr.gif');

		preload('navlocationon','images/nav/btn-location-on.gif');



		preload('navroomsoff','images/nav/btn-rooms-off.gif');

		preload('navroomsovr','images/nav/btn-rooms-ovr.gif');

		preload('navroomson','images/nav/btn-rooms-on.gif');



		preload('navspecialpackagesoff','images/nav/btn-special-packages-off.gif');

		preload('navspecialpackagesovr','images/nav/btn-special-packages-ovr.gif');

		preload('navspecialpackageson','images/nav/btn-special-packages-on.gif');

		

		preload('findaroomOff','images/btn-findaroom.gif');

		preload('findaroomOn','images/btn-findaroomOn.gif');

	    preload('calendarOff','images/ico-calendar2.gif');

		preload('calendarOn','images/ico-calendar2ovr.gif');

		

		preload('submitOff','images/btn-submit.gif');

		preload('submitOn', 'images/btn-submitOn.gif');



function preload(imgObj,imgSrc) {

	/*

		function to preload images

	*/

	if (document.images) {

		eval(imgObj+' = new Image()');

		eval(imgObj+'.src = "'+imgSrc+'"');

	}

}



function changeImage(imgName,imgObj,layer) {

	/*

		function to do rollovers of images

	*/

	if (document.images) {

		if (document.layers) {

			if (layer!=null){

				eval('document.layers.'+layer+'.document.images["'+imgName+'"].src = '+imgObj+'.src');

			} else {

				document.images[imgName].src = eval(imgObj+".src");

			}

		} else {

			document.images[imgName].src = eval(imgObj+".src");

		}

	}

}