(function ($) {

	$.expr[":"].childOf = function () {

		return ($(arguments[0]).parents(arguments[2][3]).length > 0);

	}

	$.extend({

		increment : function ( string ) {

			var incrementBy = (!isNaN(parseInt(arguments[1])) ? parseInt(arguments[1]) : 1), pattern = new RegExp(/\d+/gi);

			return (string.length && string.match(pattern) ? string.replace(pattern, parseInt(string.match(pattern)[0]) + incrementBy) : string + incrementBy);

		}

	});

	$.fn.extend({

		appendChain : function (element) {

			var children = [];

			this.each(function () {

				that = $(document.createElement("div")).append(element);

				that.children().each(function () { children.push(this); }).appendTo(this);

				that.remove();

			});

			return $(children);

		},

		increment : function ( key ) {

			var incrementBy = (arguments[1] || 1);

			return this.each(function () {

				$(this).attr(key, $.increment($(this).attr(key), incrementBy));

			});

		},

		prependChain : function (element) {

			var children = [];

			this.each(function () {

				that = $(document.createElement("div")).append(element);

				that.children().each(function () { children.push(this); }).prependTo(this);

				that.remove();

			});

			return $(children);

		},

		scrollTo : function (top, left, speed) {

			left = (typeof left == "number" ? left : 0);

			speed = (typeof speed == "number" ? speed : 0);

			top = (typeof top == "number" ? top : 0);

			this.each(function () {

				if (speed > 0) jQuery(this).animate({ scrollLeft : left, scrollTop : top }, speed);

				else if (this.scrollTo) this.scrollTo(left, top);

			});

			return this;

		},

		scrollToTop : function (speed) {

			this.each(function () {

				scrollTo(0, 0, speed);

			});

		},

		stopLoading : function () {

			if (navigator.userAgent.search(/msie/gi) >= 0) {

				if (jQuery(document).children("iframe#stopLoading").length == 0) {

					iframe = document.createElement("iframe");

					iframe.height = iframe.width = 1;

					iframe.id = iframe.name = "stopLoading";

					document.appendChild(iframe);

				}

				jQuery(document).children("iframe#stopLoading").attr("src", "");

			}

		}

	});

	if (!$().delay)

		$.fn.extend({

			delay : function (time,func) {

				this.each(function(){

					if (typeof(x) == number) clearTimeout(x);

					x = setTimeout(func,time);

				});

				return this;

			}

		});

})(jQuery);