redirect_to.js

/*
	
	Handy url redirection that's as flexilbe as the href attribute of A tags.
	
	There might have been an easier way to do this, if so, let me know how stupid
	I am :)
	
	Example:
	*** Browser is on http://my.domain.com:3000/hello/world.html
	
	window.redirect_to("world2.html"); // => http://my.domain.com:3000/hello/world2.html
	window.redirect_to("/blog"); // => http://my.domain.com:3000/blog
	window.redirect_to("http://www.google.com/"); // => http://www.google.com/
	
*/

window.redirect_to = function(url, location){
	if (typeof(location) === "undefined") {
		location = window.location;
	};
	var redirect_to = "";
	if (url.match(/.+\:\/\/.+/) === null) {
		redirect_to += location.protocol + "//";
		redirect_to += location.hostname;
		if (location.port !== "") { redirect_to += ":" + location.port; };
		if (url.charAt(0) !== "/") {
			redirect_to += location.pathname.substr(0, location.pathname.lastIndexOf("/")+1);
		};
		window.location.href = redirect_to + url;
	} else {
		window.location.href = url;
	};
};