function replaceImage(img) {
	if (img.width == '1' && img.src.match(/\.01\./)) {
		img.src = 'http://images-jp.amazon.com/images/G/09/x-locale/detail/thumb-no-image.gif';
		img.width = 98;
		img.height = 140;
	} else if (img.width == '1') {
		img.src = img.src.replace('.09.','.01.');
	}
}

<script src="path/to/amazon.js" type="text/javascript"></script>

<img src="/path/to/image" onload="replaceImage(this)" />

javascript:
var afid='AmazonアソシエイトID';
var u=document.location.href;
javascript:
var ai=u.indexOf('ASIN');var asin=u.substring(ai+5,ai+15);
var link='http://amazon.co.jp/o/ASIN/'+asin+'/'+afid+'/ref=nosim;
var x=prompt('Tiny URL',link);