Run tests that need a body at doc ready

gistfile1.js

	// Run tests that need a body at doc ready
	jQuery(function() {
		var container, outer, inner, table, td, offsetSupport,
			marginDiv, conMarginTop, style, html, positionTopLeftWidthHeight,
			paddingMarginBorderVisibility, paddingMarginBorder,
			body = document.getElementsByTagName("body")[0];

		if ( !body ) {
			// Return for frameset docs that don't have a body
			return;
		}

		conMarginTop = 1;
		paddingMarginBorder = "padding:0;margin:0;border:";
		positionTopLeftWidthHeight = "position:absolute;top:0;left:0;width:1px;height:1px;";
		paddingMarginBorderVisibility = paddingMarginBorder + "0;visibility:hidden;";
		style = "style='" + positionTopLeftWidthHeight + paddingMarginBorder + "5px solid #000;";
		html = "<div " + style + "display:block;'><div style='" + paddingMarginBorder + "0;display:block;overflow:hidden;'></div></div>" +
			"<table " + style + "' cellpadding='0' cellspacing='0'>" +
			"<tr><td></td></tr></table>";

		container = document.createElement("div");
		container.style.cssText = paddingMarginBorderVisibility + "width:0;height:0;position:static;top:0;margin-top:" + conMarginTop + "px";
		body.insertBefore( container, body.firstChild );

		// Construct the test element
		div = document.createElement("div");
		container.appendChild( div );

		// Check if table cells still have offsetWidth/Height when they are set
		// to display:none and there are still other visible table cells in a
		// table row; if so, offsetWidth/Height are not reliable for use when
		// determining if an element has been hidden directly using
		// display:none (it is still safe to use offsets if a parent element is
		// hidden; don safety goggles and see bug #4512 for more information).
		// (only IE 8 fails this test)
		div.innerHTML = "<table><tr><td style='" + paddingMarginBorder + "0;display:none'></td><td>t</td></tr></table>";
		tds = div.getElementsByTagName( "td" );
		isSupported = ( tds[ 0 ].offsetHeight === 0 );

		tds[ 0 ].style.display = "";
		tds[ 1 ].style.display = "none";

		// Check if empty table cells still have offsetWidth/Height
		// (IE <= 8 fail this test)
		support.reliableHiddenOffsets = isSupported && ( tds[ 0 ].offsetHeight === 0 );

		// Check if div with explicit width and no margin-right incorrectly
		// gets computed margin-right based on width of container. For more
		// info see bug #3333
		// Fails in WebKit before Feb 2011 nightlies
		// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
		if ( window.getComputedStyle ) {
			div.innerHTML = "";
			marginDiv = document.createElement( "div" );
			marginDiv.style.width = "0";
			marginDiv.style.marginRight = "0";
			div.style.width = "2px";
			div.appendChild( marginDiv );
			support.reliableMarginRight =
				( parseInt( ( window.getComputedStyle( marginDiv, null ) || { marginRight: 0 } ).marginRight, 10 ) || 0 ) === 0;
		}

		if ( typeof div.style.zoom !== "undefined" ) {
			// Check if natively block-level elements act like inline-block
			// elements when setting their display to 'inline' and giving
			// them layout
			// (IE < 8 does this)
			div.innerHTML = "";
			div.style.width = div.style.padding = "1px";
			div.style.border = 0;
			div.style.overflow = "hidden";
			div.style.display = "inline";
			div.style.zoom = 1;
			support.inlineBlockNeedsLayout = ( div.offsetWidth === 3 );

			// Check if elements with layout shrink-wrap their children
			// (IE 6 does this)
			div.style.display = "block";
			div.style.overflow = "visible";
			div.innerHTML = "<div style='width:5px;'></div>";
			support.shrinkWrapBlocks = ( div.offsetWidth !== 3 );
		}

		div.style.cssText = positionTopLeftWidthHeight + paddingMarginBorderVisibility;
		div.innerHTML = html;

		outer = div.firstChild;
		inner = outer.firstChild;
		td = outer.nextSibling.firstChild.firstChild;

		offsetSupport = {
			doesNotAddBorder: ( inner.offsetTop !== 5 ),
			doesAddBorderForTableAndCells: ( td.offsetTop === 5 )
		};

		inner.style.position = "fixed";
		inner.style.top = "20px";

		// safari subtracts parent border width here which is 5px
		offsetSupport.fixedPosition = ( inner.offsetTop === 20 || inner.offsetTop === 15 );
		inner.style.position = inner.style.top = "";

		outer.style.overflow = "hidden";
		outer.style.position = "relative";

		offsetSupport.subtractsBorderForOverflowNotVisible = ( inner.offsetTop === -5 );
		offsetSupport.doesNotIncludeMarginInBodyOffset = ( body.offsetTop !== conMarginTop );

		if ( window.getComputedStyle ) {
			div.style.marginTop = "1%";
			support.pixelMargin = ( window.getComputedStyle( div, null ) || { marginTop: 0 } ).marginTop !== "1%";
		}

		if ( typeof container.style.zoom !== "undefined" ) {
			container.style.zoom = 1;
		}

		body.removeChild( container );
		marginDiv = div = container = null;

		jQuery.extend( support, offsetSupport );
	});

	return support;