function getAmazon(){

	var name = $F('idol_name');
	
	if(name != ""){
		var URL = webroot + "getAmazon/" + name + "/" + Element.getHeight($('photo-list'));
		new Ajax.Updater('amazon_books',URL,{"method": "get","asynchronous":true,"evalScripts":true,
											"requestHeaders":['X-Update', 'amazon_books']},false);
	} else {
		Element.update($('load_span'), '');
	}
}