(function ($) {
	$.floatbox = function (options) {
		//support for jquery 1.0 request by christoph@breidert.net
		var getWidth = function () {
			var version = parseInt($.prototype.jquery.match(/\d/gim)[1]);
			var width;
			if (version > 1) {
				width = $(window).width();
			} else {
				width = document.body.scrollWidth ? document.body.scrollWidth : document.documentElement.scrollWidth;
			}
			return width / 2;
		};
		
		var getHeight = function () {
			var version = parseInt($.prototype.jquery.match(/\d/gim)[1]);
			var height;
			if (version > 1) {
				height = $(window).height();
			} else {
				height = document.body.scrollHeight ? document.body.scrollHeight : document.documentElement.scrollheight;
			}
			return height;
		};
		
		var settings = $.extend(true, {
			bg : "floatbox-background",
			box : "floatbox-box",
			content : "",
			button: "<a role='button' href='javascript:void(0);' class='close-floatbox'>schliessen</a>",
			desc: "This is a popup box, press esc key to close.",
			fade : false,
			ajax: null,
			buttonPosition: "above",
			bgConfig : {
				position: ($.browser.msie) ? "absolute" : "fixed",
				zIndex: 8,
				width: "100%",
				height: "100%",
				top:  "0px",
				left: "0px",
				backgroundColor: "#000", 
				opacity: "0.75",
				display: "none"
			},
			boxConfig : {
				position : ($.browser.msie) ? "absolute" : "fixed",
				zIndex: 9,
				width: "300px",
				marginLeft: "-" + (300 / 2) + "px",
				height: "385px",
				top: "80px", /* 50% */
				left: "50%",
				backgroundColor: "#fff",
				display: "none"
			}
		}, options);
		
		//hidden div containing all settings
		$("<div></div>")
		.attr("id", "jqfloatbox-params")
		.css("display", "none")
		.appendTo("body")
		.each(function () {
			$.data(this, settings);
		});

		//inserts floatbox and sets its content
		var showBox = function () {
			var content = typeof settings.content === "string" ? settings.content : settings.content.clone();
			//inserts the background element in the document
			$("<div></div>")
				.bind("click", function () {
					closeBox();
				})
				.attr("id", settings.bg)
				.css(settings.bgConfig)
				.width(($.browser.msie) ? document.body.clientWidth : "100%")
				.height(($.browser.msie) ? document.body.clientHeight : "100%")
				.appendTo("body");
			//inserts the floating box in the document
			$("<div></div>")
				.attr({id: settings.box, role: "alertdialog"})
				.appendTo("body")
				.each(function () {
					if (settings.buttonPosition == "bellow") {
						$(this)
						.html(content)
						.append(settings.button);
					} else if (settings.buttonPosition == "above") {
						$(this)
						.empty()
						.append(settings.button)
						.append(content);
					} else {
						$(this)
						.html(content);
					}
				})
				.css(settings.boxConfig)
				.css("margin-top", $("#" + settings.box).height() > getHeight() ? "0" :  "-" + $("#" + settings.box).height() / 2 + "px")
				.css("top",  $("#" + settings.box).height() > getHeight() ? "0" :  "50%")
				.css("position", $("#" + settings.box).height() > getHeight() ? "absolute" :  ($.browser.msie) ? "absolute" : "fixed")
				.find(".close-floatbox").bind("click", function () {
					closeBox();
				})
				.end();
			//checks if it needs to fade or not
			if (settings.fade) {
				$("#" + settings.bg)
				.fadeIn(200, function () {
					$("div#" + settings.box).fadeIn(200);
				});
			} else {
				$("#" + settings.bg)
				.show()
				.parent().find("#" + settings.box).show();
			}
			//sets if ajax is needed(already detectets if it is POST or GET)
			if (settings.ajax) {
				$.ajax({
					type: settings.ajax.params === "" ? "GET" : "POST",
					url: settings.ajax.url,
					data: settings.ajax.params,
					
					beforeSend: function () {
						$("#" + settings.box).html(settings.ajax.before);
					},
					
					success: function (data) {
						$("#" + settings.box)
							.html(data)
							.append(settings.button)
							.find(".close-floatbox").bind("click", function () {
								closeBox()
							})
						.end();
						
					},
					complete: function (XMLHttpRequest, textStatus) {
						if (settings.ajax.finish) {
							settings.ajax.finish(XMLHttpRequest, textStatus);
						}
					},
					contentType: "html"
				});
			}
		};
		//hides floatingbox and background
		var closeBox = function () {  /* $("object").show(); */
			if (settings.fade) {
				$("#" + settings.box).fadeOut(200, function () {
					 $("#" + settings.bg).fadeOut(200, function () {
						$("#" + settings.box).remove();
						$("#" + settings.bg).remove();
					});
				});
			} else {
				//for opera issues hide first and a timeout is needed to remove the elements
				$("#" + settings.box + ",#" + settings.bg).hide();
				setTimeout(function () {
					$("#" + settings.box).remove();
					$("#" + settings.bg).remove();
				}, 500);
			}
		};
		//inits the floatbox
		var init = function () {
			//shows box
			showBox();
      /* $("object").hide(); */
			//adds cross browser event to esc key to hide floating box
			$(document).one("keypress", function (e) {
				var escKey = $.browser.mozilla ? 0 : 27;
				if (e.which === escKey) {
					closeBox();
				}
			})
			.one("keydown", function (e) {
				var escKey = $.browser.mozilla ? 0 : 27;
				if (e.which === escKey) {
					closeBox();
				}
			});
			//if msie6, adds event to browser scroll to keep floatbox ina fixed position and uses css hack for full background size
			if ($.browser.msie && $("#" + settings.box).height() > getHeight()) {
				$("body, html").css({height: "100%", width: "100%"});
				$(window).bind("scroll", function () {
					$("#" + settings.box).css("top", document.documentElement.scrollTop +  ($(window).height() / 2) + "px");
				});
			}
		};
		//starts the plugin
		init();
	};
})(jQuery);