jQuery.support = (function( support ) {var all, a, input, select, fragment, opt, eventName, isSupported, i,div = document.createElement("div");// Setupdiv.setAttribute( "className", "t" );div.innerHTML = "  <link/><table></table><a href='/a'>a</a><input type='checkbox'/>";// Finish early in limited (non-browser) environmentsall = div.getElementsByTagName("*") || [];a = div.getElementsByTagName("a")[ 0 ];if ( !a || !a.style || !all.length ) {return support;}// First batch of testsselect = document.createElement("select");opt = select.appendChild( document.createElement("option") );input = div.getElementsByTagName("input")[ 0 ];a.style.cssText = "top:1px;float:left;opacity:.5";// Test setAttribute on camelCase class. If it works, we need attrFixes when doing get/setAttribute (ie6/7)support.getSetAttribute = div.className !== "t";// IE strips leading whitespace when .innerHTML is usedsupport.leadingWhitespace = div.firstChild.nodeType === 3;// Make sure that tbody elements aren't automatically inserted// IE will insert them into empty tablessupport.tbody = !div.getElementsByTagName("tbody").length;// Make sure that link elements get serialized correctly by innerHTML// This requires a wrapper element in IEsupport.htmlSerialize = !!div.getElementsByTagName("link").length;// Get the style information from getAttribute// (IE uses .cssText instead)support.style = /top/.test( a.getAttribute("style") );// Make sure that URLs aren't manipulated// (IE normalizes it by default)support.hrefNormalized = a.getAttribute("href") === "/a";// Make sure that element opacity exists// (IE uses filter instead)// Use a regex to work around a WebKit issue. See #5145support.opacity = /^0.5/.test( a.style.opacity );// Verify style float existence// (IE uses styleFloat instead of cssFloat)support.cssFloat = !!a.style.cssFloat;// Check the default checkbox/radio value ("" on WebKit; "on" elsewhere)support.checkOn = !!input.value;// Make sure that a selected-by-default option has a working selected property.// (WebKit defaults to false instead of true, IE too, if it's in an optgroup)support.optSelected = opt.selected;// Tests for enctype support on a form (#6743)support.enctype = !!document.createElement("form").enctype;// Makes sure cloning an html5 element does not cause problems// Where outerHTML is undefined, this still workssupport.html5Clone = document.createElement("nav").cloneNode( true ).outerHTML !== "<:nav></:nav>";// Will be defined latersupport.inlineBlockNeedsLayout = false;support.shrinkWrapBlocks = false;support.pixelPosition = false;support.deleteExpando = true;support.noCloneEvent = true;support.reliableMarginRight = true;support.boxSizingReliable = true;// Make sure checked status is properly clonedinput.checked = true;support.noCloneChecked = input.cloneNode( true ).checked;// Make sure that the options inside disabled selects aren't marked as disabled// (WebKit marks them as disabled)select.disabled = true;support.optDisabled = !opt.disabled;// Support: IE<9try {delete div.test;} catch( e ) {support.deleteExpando = false;}// Check if we can trust getAttribute("value")input = document.createElement("input");input.setAttribute( "value", "" );support.input = input.getAttribute( "value" ) === "";// Check if an input maintains its value after becoming a radioinput.value = "t";input.setAttribute( "type", "radio" );support.radioValue = input.value === "t";// #11217 - WebKit loses check when the name is after the checked attributeinput.setAttribute( "checked", "t" );input.setAttribute( "name", "t" );fragment = document.createDocumentFragment();fragment.appendChild( input );// Check if a disconnected checkbox will retain its checked// value of true after appended to the DOM (IE6/7)support.appendChecked = input.checked;// WebKit doesn't clone checked state correctly in fragmentssupport.checkClone = fragment.cloneNode( true ).cloneNode( true ).lastChild.checked;// Support: IE<9// Opera does not clone events (and typeof div.attachEvent === undefined).// IE9-10 clones events bound via attachEvent, but they don't trigger with .click()if ( div.attachEvent ) {div.attachEvent( "onclick", function() {support.noCloneEvent = false;});div.cloneNode( true ).click();}// Support: IE<9 (lack submit/change bubble), Firefox 17+ (lack focusin event)// Beware of CSP restrictions (https://developer.mozilla.org/en/Security/CSP)for ( i in { submit: true, change: true, focusin: true }) {div.setAttribute( eventName = "on" + i, "t" );support[ i + "Bubbles" ] = eventName in window || div.attributes[ eventName ].expando === false;}div.style.backgroundClip = "content-box";div.cloneNode( true ).style.backgroundClip = "";support.clearCloneStyle = div.style.backgroundClip === "content-box";// Support: IE<9// Iteration over object's inherited properties before its own.for ( i in jQuery( support ) ) {break;}support.ownLast = i !== "0";// Run tests that need a body at doc readyjQuery(function() {var container, marginDiv, tds,divReset = "padding:0;margin:0;border:0;display:block;box-sizing:content-box;-moz-box-sizing:content-box;-webkit-box-sizing:content-box;",body = document.getElementsByTagName("body")[0];if ( !body ) {// Return for frameset docs that don't have a bodyreturn;}container = document.createElement("div");container.style.cssText = "border:0;width:0;height:0;position:absolute;top:0;left:-9999px;margin-top:1px";body.appendChild( container ).appendChild( div );// Support: IE8// 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).div.innerHTML = "<table><tr><td></td><td>t</td></tr></table>";tds = div.getElementsByTagName("td");tds[ 0 ].style.cssText = "padding:0;margin:0;border:0;display:none";isSupported = ( tds[ 0 ].offsetHeight === 0 );tds[ 0 ].style.display = "";tds[ 1 ].style.display = "none";// Support: IE8// Check if empty table cells still have offsetWidth/Heightsupport.reliableHiddenOffsets = isSupported && ( tds[ 0 ].offsetHeight === 0 );// Check box-sizing and margin behavior.div.innerHTML = "";div.style.cssText = "box-sizing:border-box;-moz-box-sizing:border-box;-webkit-box-sizing:border-box;padding:1px;border:1px;display:block;width:4px;margin-top:1%;position:absolute;top:1%;";// Workaround failing boxSizing test due to offsetWidth returning wrong value// with some non-1 values of body zoom, ticket #13543jQuery.swap( body, body.style.zoom != null ? { zoom: 1 } : {}, function() {support.boxSizing = div.offsetWidth === 4;});// Use window.getComputedStyle because jsdom on node.js will break without it.if ( window.getComputedStyle ) {support.pixelPosition = ( window.getComputedStyle( div, null ) || {} ).top !== "1%";support.boxSizingReliable = ( window.getComputedStyle( div, null ) || { width: "4px" } ).width === "4px";// Check if div with explicit width and no margin-right incorrectly// gets computed margin-right based on width of container. (#3333)// Fails in WebKit before Feb 2011 nightlies// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-rightmarginDiv = div.appendChild( document.createElement("div") );marginDiv.style.cssText = div.style.cssText = divReset;marginDiv.style.marginRight = marginDiv.style.width = "0";div.style.width = "1px";support.reliableMarginRight =!parseFloat( ( window.getComputedStyle( marginDiv, null ) || {} ).marginRight );}if ( typeof div.style.zoom !== core_strundefined ) {// Support: IE<8// Check if natively block-level elements act like inline-block// elements when setting their display to 'inline' and giving// them layoutdiv.innerHTML = "";div.style.cssText = divReset + "width:1px;padding:1px;display:inline;zoom:1";support.inlineBlockNeedsLayout = ( div.offsetWidth === 3 );// Support: IE6// Check if elements with layout shrink-wrap their childrendiv.style.display = "block";div.innerHTML = "<div></div>";div.firstChild.style.width = "5px";support.shrinkWrapBlocks = ( div.offsetWidth !== 3 );if ( support.inlineBlockNeedsLayout ) {// Prevent IE 6 from affecting layout for positioned elements #11048// Prevent IE from shrinking the body in IE 7 mode #12869// Support: IE<8body.style.zoom = 1;}}body.removeChild( container );// Null elements to avoid leaks in IEcontainer = div = tds = marginDiv = null;});// Null elements to avoid leaks in IEall = select = fragment = opt = a = input = null;return support;
})({});