$(function(){
	var conf = {
		className : 'externalLink'
	};
	$('a[@href^="http"]').click(function(){
		if(this.href == "http://www.uchiwa.info/" || this.href == "http://www.uchiwa.info/sensu/"){
			window.open(this.href, "_self");
			return false;
		}
		window.open(this.href, "_blank");
		return false;
	}).addClass(conf.className);
});