/* Copyright (c) 2006 Brandon Aaron (http://brandonaaron.net)
 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
 *
 * $LastChangedDate: 2007-07-21 18:44:59 -0500 (Sat, 21 Jul 2007) $
 * $Rev: 2446 $
 *
 * Version 2.1.1
 */
(function($){
 /**
 * The bgiframe is chainable and applies the iframe hack to get
 * around zIndex issues in IE6. It will only apply itself in IE6
 * and adds a class to the iframe called 'bgiframe'. The iframe
 * is appeneded as the first child of the matched element(s)
 * with a tabIndex and zIndex of -1.
 *
 * By default the plugin will take borders, sized with pixel units,
 * into account. If a different unit is used for the border's width,
 * then you will need to use the top and left settings as explained below.
 *
 * NOTICE: This plugin has been reported to cause perfromance problems
 * when used on elements that change properties (like width, height and
 * opacity) a lot in IE6. Most of these problems have been caused by
 * the expressions used to calculate the elements width, height and
 * borders. Some have reported it is due to the opacity filter. All
 * these settings can be changed if needed as explained below.
 *
 * @example $('div').bgiframe();
 * @before <div><p>Paragraph</p></div>
 * @result <div><iframe class="bgiframe".../><p>Paragraph</p></div>
 *
 * @param Map settings Optional settings to configure the iframe.
 * @option String|Number top The iframe must be offset to the top
 * by the width of the top border. This should be a negative
 * number representing the border-top-width. If a number is
 * is used here, pixels will be assumed. Otherwise, be sure
 * to specify a unit. An expression could also be used.
 * By default the value is "auto" which will use an expression
 * to get the border-top-width if it is in pixels.
 * @option String|Number left The iframe must be offset to the left
 * by the width of the left border. This should be a negative
 * number representing the border-left-width. If a number is
 * is used here, pixels will be assumed. Otherwise, be sure
 * to specify a unit. An expression could also be used.
 * By default the value is "auto" which will use an expression
 * to get the border-left-width if it is in pixels.
 * @option String|Number width This is the width of the iframe. If
 * a number is used here, pixels will be assume. Otherwise, be sure
 * to specify a unit. An experssion could also be used.
 * By default the value is "auto" which will use an experssion
 * to get the offsetWidth.
 * @option String|Number height This is the height of the iframe. If
 * a number is used here, pixels will be assume. Otherwise, be sure
 * to specify a unit. An experssion could also be used.
 * By default the value is "auto" which will use an experssion
 * to get the offsetHeight.
 * @option Boolean opacity This is a boolean representing whether or not
 * to use opacity. If set to true, the opacity of 0 is applied. If
 * set to false, the opacity filter is not applied. Default: true.
 * @option String src This setting is provided so that one could change
 * the src of the iframe to whatever they need.
 * Default: "javascript:false;"
 *
 * @name bgiframe
 * @type jQuery
 * @cat Plugins/bgiframe
 * @author Brandon Aaron (brandon.aaron@gmail.com || http://brandonaaron.net)
 */
 $.fn.bgIframe = $.fn.bgiframe = function(s) {
 // This is only for IE6
 if ( $.browser.msie && /6.0/.test(navigator.userAgent) ) {
 s = $.extend({
 top : 'auto', // auto == .currentStyle.borderTopWidth
 left : 'auto', // auto == .currentStyle.borderLeftWidth
 width : 'auto', // auto == offsetWidth
 height : 'auto', // auto == offsetHeight
 opacity : true,
 src : 'javascript:false;'
 }, s || {});
 var prop = function(n){return n&&n.constructor==Number?n+'px':n;},
 html = '<iframe class="bgiframe"frameborder="0"tabindex="-1"src="'+s.src+'"'+
 'style="display:block;position:absolute;z-index:-1;'+
 (s.opacity !== false?'filter:Alpha(Opacity=\'0\');':'')+
 'top:'+(s.top=='auto'?'expression(((parseInt(this.parentNode.currentStyle.borderTopWidth)||0)*-1)+\'px\')':prop(s.top))+';'+
 'left:'+(s.left=='auto'?'expression(((parseInt(this.parentNode.currentStyle.borderLeftWidth)||0)*-1)+\'px\')':prop(s.left))+';'+
 'width:'+(s.width=='auto'?'expression(this.parentNode.offsetWidth+\'px\')':prop(s.width))+';'+
 'height:'+(s.height=='auto'?'expression(this.parentNode.offsetHeight+\'px\')':prop(s.height))+';'+
 '"/>';
 return this.each(function() {
 if ( $('> iframe.bgiframe', this).length == 0 )
 this.insertBefore( document.createElement(html), this.firstChild );
 });
 }
 return this;
 };
})(jQuery);
(function($){
 /* hoverIntent by Brian Cherne */
 $.fn.hoverIntent = function(f,g) {
 // default configuration options
 var cfg = {
 sensitivity: 7,
 interval: 100,
 timeout: 0
 };
 // override configuration options with user supplied object
 cfg = $.extend(cfg, g ? { over: f, out: g } : f );
 // instantiate variables
 // cX, cY = current X and Y position of mouse, updated by mousemove event
 // pX, pY = previous X and Y position of mouse, set by mouseover and polling interval
 var cX, cY, pX, pY;
 // A private function for getting mouse position
 var track = function(ev) {
 cX = ev.pageX;
 cY = ev.pageY;
 };
 // A private function for comparing current and previous mouse position
 var compare = function(ev,ob) {
 ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t);
 // compare mouse positions to see if they've crossed the threshold
 if ( ( Math.abs(pX-cX) + Math.abs(pY-cY) ) < cfg.sensitivity ) {
 $(ob).unbind("mousemove",track);
 // set hoverIntent state to true (so mouseOut can be called)
 ob.hoverIntent_s = 1;
 return cfg.over.apply(ob,[ev]);
 } else {
 // set previous coordinates for next time
 pX = cX; pY = cY;
 // use self-calling timeout, guarantees intervals are spaced out properly (avoids JavaScript timer bugs)
 ob.hoverIntent_t = setTimeout( function(){compare(ev, ob);} , cfg.interval );
 }
 };
 // A private function for delaying the mouseOut function
 var delay = function(ev,ob) {
 ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t);
 ob.hoverIntent_s = 0;
 return cfg.out.apply(ob,[ev]);
 };
 // A private function for handling mouse 'hovering'
 var handleHover = function(e) {
 // next three lines copied from jQuery.hover, ignore children onMouseOver/onMouseOut
 var p = (e.type == "mouseover" ? e.fromElement : e.toElement) || e.relatedTarget;
 while ( p && p != this ) { try { p = p.parentNode; } catch(e) { p = this; } }
 if ( p == this ) { return false; }
 // copy objects to be passed into t (required for event object to be passed in IE)
 var ev = jQuery.extend({},e);
 var ob = this;
 // cancel hoverIntent timer if it exists
 if (ob.hoverIntent_t) { ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t); }
 // else e.type == "onmouseover"
 if (e.type == "mouseover") {
 // set "previous" X and Y position based on initial entry point
 pX = ev.pageX; pY = ev.pageY;
 // update "current" X and Y position based on mousemove
 $(ob).bind("mousemove",track);
 // start polling interval (self-calling timeout) to compare mouse coordinates over time
 if (ob.hoverIntent_s != 1) { ob.hoverIntent_t = setTimeout( function(){compare(ev,ob);} , cfg.interval );}
 // else e.type == "onmouseout"
 } else {
 // unbind expensive mousemove event
 $(ob).unbind("mousemove",track);
 // if hoverIntent state is true, then call the mouseOut function after the specified delay
 if (ob.hoverIntent_s == 1) { ob.hoverIntent_t = setTimeout( function(){delay(ev,ob);} , cfg.timeout );}
 }
 };
 // bind the function to the two event listeners
 return this.mouseover(handleHover).mouseout(handleHover);
 };
})(jQuery);