(function(){
jQuery.support = {};
var root = document.documentElement,
script = document.createElement("script"),
div = document.createElement("div"),
id = "script" + (new Date).getTime();
div.style.display = "none";
div.innerHTML = '
a text ';
var all = div.getElementsByTagName("*"),
a = div.getElementsByTagName("a")[0];
// Can't get basic test support
if ( !all || !all.length || !a ) {
return;
}
jQuery.support = {
// IE strips leading whitespace when .innerHTML is used
leadingWhitespace: div.firstChild.nodeType == 3,
// Make sure that tbody elements aren't automatically inserted
// IE will insert them into empty tables
tbody: !div.getElementsByTagName("tbody").length,
// Make sure that you can get all elements in an element
// IE 7 always returns no results
objectAll: !!div.getElementsByTagName("object")[0]
.getElementsByTagName("*").length,
// Make sure that link elements get serialized correctly by innerHTML
// This requires a wrapper element in IE
htmlSerialize: !!div.getElementsByTagName("link").length,
// Get the style information from getAttribute
// (IE uses .cssText insted)
style: /red/.test( a.getAttribute("style") ),
// Make sure that URLs aren't manipulated
// (IE normalizes it by default)
hrefNormalized: a.getAttribute("href") === "/a",
// Make sure that element opacity exists
// (IE uses filter instead)
opacity: a.style.opacity === "0.5",
// Verify style float existence
// (IE uses styleFloat instead of cssFloat)
cssFloat: !!a.style.cssFloat,
// Will be defined later
scriptEval: false,
noCloneEvent: true,
boxModel: null
};
script.type = "text/javascript";
try {
script.appendChild( document.createTextNode( "window." + id + "=1;" ) );
} catch(e){}
root.insertBefore( script, root.firstChild );
// Make sure that the execution of code works by injecting a script
// tag with appendChild/createTextNode
// (IE doesn't support this, fails, and uses .text instead)
if ( window[ id ] ) {
jQuery.support.scriptEval = true;
delete window[ id ];
}
root.removeChild( script );
if ( div.attachEvent && div.fireEvent ) {
div.attachEvent("onclick", function(){
// Cloning a node shouldn't copy over any
// bound event handlers (IE does this)
jQuery.support.noCloneEvent = false;
div.detachEvent("onclick", arguments.callee);
});
div.cloneNode(true).fireEvent("onclick");
}
// Figure out if the W3C box model works as expected
// document.body must exist before we can do this
jQuery(function(){
var div = document.createElement("div");
div.style.width = "1px";
div.style.paddingLeft = "1px";
document.body.appendChild( div );
jQuery.boxModel = jQuery.support.boxModel = div.offsetWidth === 2;
document.body.removeChild( div );
});
})();
// Helper function used by the dimensions and offset modules
function num(elem, prop) {
return elem[0] && parseInt( jQuery.curCSS(elem[0], prop, true), 10 ) || 0;
}
function now(){
return +new Date;
}
jQuery.extend({
speed: function(speed, easing, fn) {
var opt = typeof speed === "object" ? speed : {
complete: fn || !fn && easing ||
jQuery.isFunction( speed ) && speed,
duration: speed,
easing: fn && easing || easing && !jQuery.isFunction(easing) && easing
};
opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :
jQuery.fx.speeds[opt.duration] || jQuery.fx.speeds._default;
// Queueing
opt.old = opt.complete;
opt.complete = function(){
if ( opt.queue !== false )
jQuery(this).dequeue();
if ( jQuery.isFunction( opt.old ) )
opt.old.call( this );
};
return opt;
},
easing: {
linear: function( p, n, firstNum, diff ) {
return firstNum + diff * p;
},
swing: function( p, n, firstNum, diff ) {
return ((-Math.cos(p*Math.PI)/2) + 0.5) * diff + firstNum;
}
},
timers: [],
timerId: null,
fx: function( elem, options, prop ){
this.options = options;
this.elem = elem;
this.prop = prop;
if ( !options.orig )
options.orig = {};
},
isArray: function( obj ) {
return toString.call(obj) === "[object Array]";
}
});
jQuery.fx.prototype = {
// Simple function for setting a style value
update: function(){
if ( this.options.step )
this.options.step.call( this.elem, this.now, this );
(jQuery.fx.step[this.prop] || jQuery.fx.step._default)( this );
// Set display property to block for height/width animations
if ( ( this.prop == "height" || this.prop == "width" ) && this.elem.style )
this.elem.style.display = "block";
},
// Get the current size
cur: function(force){
if ( this.elem[this.prop] != null && (!this.elem.style || this.elem.style[this.prop] == null) )
return this.elem[ this.prop ];
var r = parseFloat(jQuery.css(this.elem, this.prop, force));
return r && r > -10000 ? r : parseFloat(jQuery.curCSS(this.elem, this.prop)) || 0;
},
// Start an animation from one number to another
custom: function(from, to, unit){
this.startTime = now();
this.start = from;
this.end = to;
this.unit = unit || this.unit || "px";
this.now = this.start;
this.pos = this.state = 0;
var self = this;
function t(gotoEnd){
return self.step(gotoEnd);
}
t.elem = this.elem;
jQuery.timers.push(t);
if ( t() && jQuery.timerId == null ) {
jQuery.timerId = setInterval(function(){
var timers = jQuery.timers;
for ( var i = 0; i < timers.length; i++ )
if ( !timers[i]() )
timers.splice(i--, 1);
if ( !timers.length ) {
clearInterval( jQuery.timerId );
jQuery.timerId = null;
}
}, 13);
}
},
// Simple 'show' function
show: function(){
// Remember where we started, so that we can go back to it later
this.options.orig[this.prop] = jQuery.attr( this.elem.style, this.prop );
this.options.show = true;
// Begin the animation
// Make sure that we start at a small width/height to avoid any
// flash of content
this.custom(this.prop == "width" || this.prop == "height" ? 1 : 0, this.cur());
// Start by showing the element
jQuery(this.elem).show();
},
// Simple 'hide' function
hide: function(){
// Remember where we started, so that we can go back to it later
this.options.orig[this.prop] = jQuery.attr( this.elem.style, this.prop );
this.options.hide = true;
// Begin the animation
this.custom(this.cur(), 0);
},
// Each step of an animation
step: function(gotoEnd){
var t = now();
if ( gotoEnd || t >= this.options.duration + this.startTime ) {
this.now = this.end;
this.pos = this.state = 1;
this.update();
this.options.curAnim[ this.prop ] = true;
var done = true;
for ( var i in this.options.curAnim )
if ( this.options.curAnim[i] !== true )
done = false;
if ( done ) {
if ( this.options.display != null ) {
// Reset the overflow
this.elem.style.overflow = this.options.overflow;
// Reset the display
this.elem.style.display = this.options.display;
if ( jQuery.css(this.elem, "display") == "none" )
this.elem.style.display = "block";
}
// Hide the element if the "hide" operation was done
if ( this.options.hide )
jQuery(this.elem).hide();
// Reset the properties, if the item has been hidden or shown
if ( this.options.hide || this.options.show )
for ( var p in this.options.curAnim )
jQuery.attr(this.elem.style, p, this.options.orig[p]);
}
if ( done )
// Execute the complete function
this.options.complete.call( this.elem );
return false;
} else {
var n = t - this.startTime;
this.state = n / this.options.duration;
// Perform the easing function, defaults to swing
this.pos = jQuery.easing[this.options.easing || (jQuery.easing.swing ? "swing" : "linear")](this.state, n, 0, 1, this.options.duration);
this.now = this.start + ((this.end - this.start) * this.pos);
// Perform the next step of the animation
this.update();
}
return true;
}
};
jQuery.extend( jQuery.fx, {
speeds:{
slow: 600,
fast: 200,
// Default speed
_default: 400
},
step: {
opacity: function(fx){
jQuery.attr(fx.elem.style, "opacity", fx.now);
},
_default: function(fx){
if ( fx.elem.style && fx.elem.style[ fx.prop ] != null )
fx.elem.style[ fx.prop ] = fx.now + fx.unit;
else
fx.elem[ fx.prop ] = fx.now;
}
}
});
if ( document.documentElement["getBoundingClientRect"] )
jQuery.fn.offset = function() {
if ( !this[0] ) return { top: 0, left: 0 };
if ( this[0] === this[0].ownerDocument.body ) return jQuery.offset.bodyOffset( this[0] );
var box = this[0].getBoundingClientRect(), doc = this[0].ownerDocument, body = doc.body, docElem = doc.documentElement,
clientTop = docElem.clientTop || body.clientTop || 0, clientLeft = docElem.clientLeft || body.clientLeft || 0,
top = box.top + (self.pageYOffset || jQuery.boxModel && docElem.scrollTop || body.scrollTop ) - clientTop,
left = box.left + (self.pageXOffset || jQuery.boxModel && docElem.scrollLeft || body.scrollLeft) - clientLeft;
return { top: top, left: left };
};
else
jQuery.fn.offset = function() {
if ( !this[0] ) return { top: 0, left: 0 };
if ( this[0] === this[0].ownerDocument.body ) return jQuery.offset.bodyOffset( this[0] );
jQuery.offset.initialized || jQuery.offset.initialize();
var elem = this[0], offsetParent = elem.offsetParent, prevOffsetParent = elem,
doc = elem.ownerDocument, computedStyle, docElem = doc.documentElement,
body = doc.body, defaultView = doc.defaultView,
prevComputedStyle = defaultView.getComputedStyle(elem, null),
top = elem.offsetTop, left = elem.offsetLeft;
while ( (elem = elem.parentNode) && elem !== body && elem !== docElem ) {
computedStyle = defaultView.getComputedStyle(elem, null);
top -= elem.scrollTop, left -= elem.scrollLeft;
if ( elem === offsetParent ) {
top += elem.offsetTop, left += elem.offsetLeft;
if ( jQuery.offset.doesNotAddBorder && !(jQuery.offset.doesAddBorderForTableAndCells && /^t(able|d|h)$/i.test(elem.tagName)) )
top += parseInt( computedStyle.borderTopWidth, 10) || 0,
left += parseInt( computedStyle.borderLeftWidth, 10) || 0;
prevOffsetParent = offsetParent, offsetParent = elem.offsetParent;
}
if ( jQuery.offset.subtractsBorderForOverflowNotVisible && computedStyle.overflow !== "visible" )
top += parseInt( computedStyle.borderTopWidth, 10) || 0,
left += parseInt( computedStyle.borderLeftWidth, 10) || 0;
prevComputedStyle = computedStyle;
}
if ( prevComputedStyle.position === "relative" || prevComputedStyle.position === "static" )
top += body.offsetTop,
left += body.offsetLeft;
if ( prevComputedStyle.position === "fixed" )
top += Math.max(docElem.scrollTop, body.scrollTop),
left += Math.max(docElem.scrollLeft, body.scrollLeft);
return { top: top, left: left };
};
jQuery.offset = {
initialize: function() {
if ( this.initialized ) return;
var body = document.body, container = document.createElement('div'), innerDiv, checkDiv, table, td, rules, prop, bodyMarginTop = body.style.marginTop,
html = '';
rules = { position: 'absolute', top: 0, left: 0, margin: 0, border: 0, width: '1px', height: '1px', visibility: 'hidden' };
for ( prop in rules ) container.style[prop] = rules[prop];
container.innerHTML = html;
body.insertBefore(container, body.firstChild);
innerDiv = container.firstChild, checkDiv = innerDiv.firstChild, td = innerDiv.nextSibling.firstChild.firstChild;
this.doesNotAddBorder = (checkDiv.offsetTop !== 5);
this.doesAddBorderForTableAndCells = (td.offsetTop === 5);
innerDiv.style.overflow = 'hidden', innerDiv.style.position = 'relative';
this.subtractsBorderForOverflowNotVisible = (checkDiv.offsetTop === -5);
body.style.marginTop = '1px';
this.doesNotIncludeMarginInBodyOffset = (body.offsetTop === 0);
body.style.marginTop = bodyMarginTop;
body.removeChild(container);
this.initialized = true;
},
bodyOffset: function(body) {
jQuery.offset.initialized || jQuery.offset.initialize();
var top = body.offsetTop, left = body.offsetLeft;
if ( jQuery.offset.doesNotIncludeMarginInBodyOffset )
top += parseInt( jQuery.curCSS(body, 'marginTop', true), 10 ) || 0,
left += parseInt( jQuery.curCSS(body, 'marginLeft', true), 10 ) || 0;
return { top: top, left: left };
}
};
jQuery.fn.extend({
position: function() {
var left = 0, top = 0, results;
if ( this[0] ) {
// Get *real* offsetParent
var offsetParent = this.offsetParent(),
// Get correct offsets
offset = this.offset(),
parentOffset = /^body|html$/i.test(offsetParent[0].tagName) ? { top: 0, left: 0 } : offsetParent.offset();
// Subtract element margins
// note: when an element has margin: auto the offsetLeft and marginLeft
// are the same in Safari causing offset.left to incorrectly be 0
offset.top -= num( this, 'marginTop' );
offset.left -= num( this, 'marginLeft' );
// Add offsetParent borders
parentOffset.top += num( offsetParent, 'borderTopWidth' );
parentOffset.left += num( offsetParent, 'borderLeftWidth' );
// Subtract the two offsets
results = {
top: offset.top - parentOffset.top,
left: offset.left - parentOffset.left
};
}
return results;
},
offsetParent: function() {
var offsetParent = this[0].offsetParent || document.body;
while ( offsetParent && (!/^body|html$/i.test(offsetParent.tagName) && jQuery.css(offsetParent, 'position') == 'static') )
offsetParent = offsetParent.offsetParent;
return jQuery(offsetParent);
}
});
// Create scrollLeft and scrollTop methods
jQuery.each( ['Left', 'Top'], function(i, name) {
var method = 'scroll' + name;
jQuery.fn[ method ] = function(val) {
if (!this[0]) return null;
return val !== undefined ?
// Set the scroll offset
this.each(function() {
this == window || this == document ?
window.scrollTo(
!i ? val : jQuery(window).scrollLeft(),
i ? val : jQuery(window).scrollTop()
) :
this[ method ] = val;
}) :
// Return the scroll offset
this[0] == window || this[0] == document ?
self[ i ? 'pageYOffset' : 'pageXOffset' ] ||
jQuery.boxModel && document.documentElement[ method ] ||
document.body[ method ] :
this[0][ method ];
};
});
// Create innerHeight, innerWidth, outerHeight and outerWidth methods
jQuery.each([ "Height", "Width" ], function(i, name){
var tl = i ? "Left" : "Top", // top or left
br = i ? "Right" : "Bottom"; // bottom or right
// innerHeight and innerWidth
jQuery.fn["inner" + name] = function(){
return this[ name.toLowerCase() ]() +
num(this, "padding" + tl) +
num(this, "padding" + br);
};
// outerHeight and outerWidth
jQuery.fn["outer" + name] = function(margin) {
return this["inner" + name]() +
num(this, "border" + tl + "Width") +
num(this, "border" + br + "Width") +
(margin ?
num(this, "margin" + tl) + num(this, "margin" + br) : 0);
};
var type = name.toLowerCase();
jQuery.fn[ type ] = function( size ) {
// Get window width or height
return this[0] == window ?
// Everyone else use document.documentElement or document.body depending on Quirks vs Standards mode
document.compatMode == "CSS1Compat" && document.documentElement[ "client" + name ] ||
document.body[ "client" + name ] :
// Get document width or height
this[0] == document ?
// Either scroll[Width/Height] or offset[Width/Height], whichever is greater
Math.max(
document.documentElement["client" + name],
document.body["scroll" + name], document.documentElement["scroll" + name],
document.body["offset" + name], document.documentElement["offset" + name]
) :
// Get or set width or height on the element
size === undefined ?
// Get width or height on the element
(this.length ? jQuery.css( this[0], type ) : null) :
// Set the width or height on the element (default to pixels if value is unitless)
this.css( type, typeof size === "string" ? size : size + "px" );
};
});