/**
 * @author Stephane Roucheray 
 * @extends jquery
 */

jQuery.fn.iframeResize = function(options) {
	var settings = jQuery.extend({
		width: "fill",
		height: "auto",
		autoUpdate: true
	}, options);
	var filler = 30;

	function onEachIframe() {
		var frame = jQuery(this);
		var body = frame.contents().find("body");

		frame.css("overflow", "hidden");
		if (settings.autoUpdate) {
			if (jQuery.browser.msie) {
				frame.attr("scrolling", "auto");
				setInterval(immediateResize, 1000);
			}
			else {
				body.bind("DOMSubtreeModified", {
					frame: frame
				}, resizeIframe);
			}
		}
		immediateResize();

		function immediateResize() {
			var e = jQuery.Event();
			e.data = {};
			e.data.frame = frame;
			resizeIframe.call(body, e);
		}
	}

	function resizeIframe(event) {
		var body = jQuery(this);
		event.data.frame.css("width", settings.width == "fill" ? "100%" : parseInt(settings.height));
		event.data.frame.css("height", settings.height == "auto" ? body.outerHeight(true) + filler : parseInt(settings.height));
	}

	jQuery(this).children("iframe").each(onEachIframe);
};