var pImages = new Array();
var imgArray = new Array();
var totalImages = 0;

function preloadImages(modelName, numImages){
	totalImages = numImages;
	// set image list
	for(j=1; j<=numImages; j++) {
		pImages[j]="http://baumcycles.com/images/bikes/"+modelName+"-"+j+".jpg";
	}

	// start preloading
	for(i=1; i<=numImages; i++) {
		imgArray[i] = new Image();
		imgArray[i].src = pImages[i];
	}
}

function getImg(thisId, modelName){
	var imgNumber = thisId.substr(3);
	// alert('../images/bikes/'+modelName+'-'+imgNumber+'.jpg');
	// document.getElementById('modelImage').src = '../images/bikes/'+modelName+'-'+imgNumber+'.jpg';
	// alert(imgArray[imgNumber].src);
	document.getElementById('modelImage').src = imgArray[imgNumber].src;
	for(i=1; i<=totalImages; i++){
		document.getElementById('img'+i).id == thisId ? document.getElementById('img'+i).className = 'currentImage' : document.getElementById('img'+i).className = 'imgLinkOff';
	}
}