+ jQuery.extend( container.style, { position: 'absolute', top: 0, left: 0, margin: 0, border: 0, width: '1px', height: '1px', visibility: 'hidden' } );
+
+ 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);
+
+ checkDiv.style.position = 'fixed', checkDiv.style.top = '20px';
+ // safari subtracts parent border width here which is 5px
+ this.supportsFixedPosition = (checkDiv.offsetTop === 20 || checkDiv.offsetTop === 15);
+ checkDiv.style.position = checkDiv.style.top = '';
+
+ innerDiv.style.overflow = 'hidden', innerDiv.style.position = 'relative';
+ this.subtractsBorderForOverflowNotVisible = (checkDiv.offsetTop === -5);
+
+ this.doesNotIncludeMarginInBodyOffset = (body.offsetTop !== bodyMarginTop);
+
+ body.removeChild( container );
+ body = container = innerDiv = checkDiv = table = td = null;
+ jQuery.offset.initialize = function() {};
+ },
+
+ bodyOffset: function( body ) {
+ var top = body.offsetTop, left = body.offsetLeft;
+
+ jQuery.offset.initialize();
+
+ if ( jQuery.offset.doesNotIncludeMarginInBodyOffset ) {
+ top += parseFloat( jQuery.curCSS(body, 'marginTop', true) ) || 0;
+ left += parseFloat( jQuery.curCSS(body, 'marginLeft', true) ) || 0;
+ }
+
+ return { top: top, left: left };
+ },
+
+ setOffset: function( elem, options ) {
+ // set position first, in-case top/left are set even on static elem
+ if ( /static/.test( jQuery.curCSS( elem, 'position' ) ) ) {
+ elem.style.position = 'relative';
+ }
+ var curElem = jQuery( elem ),
+ curOffset = curElem.offset(),
+ curTop = parseInt( jQuery.curCSS( elem, 'top', true ), 10 ) || 0,
+ curLeft = parseInt( jQuery.curCSS( elem, 'left', true ), 10) || 0,
+ props = {
+ top: (options.top - curOffset.top) + curTop,
+ left: (options.left - curOffset.left) + curLeft
+ };
+
+ if ( 'using' in options ) {
+ options.using.call( elem, props );
+ } else {
+ curElem.css( props );
+ }