var imageArr = [];

function preloadImages(images)
{
  for(i=0;i < images.length;i++)
  {
    image = new Image();
    image.src = images[i].imageurl;
    imageArr.push(image);
  }
}

function formatCurrency(nr,sign) {
	nr = (isNaN(nr) || nr === '' || nr === null) ? 0.00 : nr;
	return (sign === true) ? '$'+parseFloat(nr).toFixed(2) : parseFloat(nr).toFixed(2);
}