Event.observe(window, 'load', item_search);

function item_search(){
	var referer = document.referrer;
	referer = encodeURIComponent(referer);
	new Ajax.Request( 
		"/ajax/item_search", 
		{ 
			method: 'get',
			parameters: 'referer=' + referer,
			onSuccess: function(request) {
//				alert("success");
				$('common_item_search').innerHTML = request.responseText;
			}.bind(this),
			onFailure: function(request) { 
//				alert("failure");
			}.bind(this),
			onComplete: function(request) { 
//				alert("complete");
			}.bind(this),
			onException: function (request) { 
				alert("exception");
            }.bind(this)
        }
    );
}