function CheckedBookImage(imageId, size) {
	this.imageId = imageId;
	this.size = size;
}

var imagesToCheck = new Array();

function addCheckedImage(imageId, size) {
	imagesToCheck[imagesToCheck.length] = new CheckedBookImage(imageId, size);
}

function checkBookImages() {
	
	for (var i = 0; i < imagesToCheck.length; i++) {
		var checkedImage = imagesToCheck[i];
		var img = document.getElementById(checkedImage.imageId);

		if (img.width < 5) {
			var replacementImage = "/Dateien/gfx/BookCoverMissing_70.jpg";
			
			if (checkedImage.size >= 120)
				replacementImage = "/Dateien/gfx/BookCoverMissing_120.jpg";
				
			img.src = replacementImage;
		}
	}
}

if (typeof window.onload != 'function')
	window.onload = checkBookImages;