function setOnClick() {
	var links = document.links;
	for (var i = 0; i < links.length; i++) {
		var link = links[i].href;
		if((link.indexOf("www.amazon.co.jp") > -1)) {
			links[i].onclick = clickLog;
		}
	}
}
function clickLog() {
	var link = this.href;

	try {
		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (e) {
		try {
			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (e) {
			xmlhttp = false;
		}
	}
	if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
		xmlhttp = new XMLHttpRequest();
	}

	if (xmlhttp) {
		xmlhttp.onreadystatechange = function() {}
		xmlhttp.open('GET', '/blog/c.php?link=' + encodeURIComponent(link) );
		xmlhttp.send(null);
	}
}

window.onload = setOnClick;