// FAS.research home script
// mass:werk 2002-2005; www.masswerk.at
// all rights reserved

var imgRef=new Array();
var knobTimer;
var imgpath='images/';

// preload
function preloadImages() {
	var knobimages=['home2','home1','home3','home4','business'];
	var knobnames=['home','business','science','support','shop'];
	for (var i=0; i<knobimages.length; i++) {
		var n='knob_'+knobnames[i];
		imgRef[n]= new Image();
		imgRef[n].src=imgpath+'knob_'+knobimages[i]+'.gif'
	}
}

if (document.images) preloadImages();

// interface
function setKnob(n) {
	if (knobTimer) clearTimeout(knobTimer);
	var img='knob_'+n;
	if ((document.images.theKnob) && (imgRef[img])) document.images.theKnob.src=imgRef[img].src;
}

function resetKnob(n) {
	knobTimer=setTimeout('setKnob("'+n+'")',250);
}

function imgReady(dimage, iref) {
	return ((document.images[dimage]) && (imgRef[iref]))? true: false;
}


// end of script