$(document).ready(function() {

	// set z-indexes
	$("#navigation li").each(function() {
		var _this = $(this);
		
		if(_this.find("div.subnavigation").length > 0) {
			_this.hover(
				function() {
          $(this).find("div.subnavigation").css("display", "block");
					$(this).css("z-index", "2");
				},
				function() {
          $(this).find("div.subnavigation").css("display", "none");
					$(this).css("z-index", "1");
				}			
			)	
		}
	});

	//animate subnavigation
	$("#navigation div.subnavigation ul").each(function() {
		var objSubnavigation 					 = $(this);
		var objSubnavigation_container = objSubnavigation.parent();
		
		var objSubnavigation_Height    				= parseInt(objSubnavigation.height());
		var objSubnavigation_container_height = objSubnavigation_container.height();
		var objSubnavigation_DefaultValue_Top = "-" + (objSubnavigation_Height-30) + "px";
		
		objSubnavigation.css("top", objSubnavigation_DefaultValue_Top);

		objSubnavigation_container.hover(
			function() {				
				//ie6+7 fix
				if ($.browser.msie && ($.browser.version <= 7)) {
					objSubnavigation_container.parent().css("left","3px");
				}				

				var BackgroundDefaultTopPos = -418; 
				objSubnavigation_container.css("background-position", "-1px " + BackgroundDefaultTopPos + "px");
				objSubnavigation.show();
				
				objSubnavigation.animate({
			    top: '0px',
			    height: (objSubnavigation_Height) + 'px'
			  }, 750, function() {
			  	// set hover
			  	objSubnavigation.find("li").not(".current").not(".mainitem").find("a").hover(
			  		function() {
			  			$(this).css("color","#033333");
			  			//$(this).css("background","#ffffff");
			  		},
			  		function() {
			  			$(this).css("color","#00a7e5");
							//$(this).css("background","none");
			  		}
			  	)
			  });
				
				var BackgroundTopPos =  (BackgroundDefaultTopPos + objSubnavigation_Height) - 30; // -30=padding
				
			  objSubnavigation_container.animate({
			    top: '0px',
			    backgroundPosition:'(-1px ' + BackgroundTopPos + 'px)',
			    height: (objSubnavigation_Height) + 'px'
			  }, 750);
			},
			function() {								
				//stop all animations
				$("#navigation div.subnavigation").stop(true,true);
				$("#navigation div.subnavigation ul").stop(true,true);					
				
				//disable hover
				objSubnavigation.find("li").not(".current").not(".mainitem").find("a").unbind("mouseenter mouseleave");
				
				//set default values
				objSubnavigation.hide();
				objSubnavigation_container.hide();
				
				objSubnavigation_container.removeAttr("style");
				objSubnavigation.removeAttr("style");
				objSubnavigation.css("top", objSubnavigation_DefaultValue_Top);
			}
		)		
	});

});

/**
 * @author Alexander Farkas
 * plugin for animating background-position
 * v. 1.21
 */


(function($) {
	if(!document.defaultView || !document.defaultView.getComputedStyle){ // IE6-IE8
		var oldCurCSS = jQuery.curCSS;
		jQuery.curCSS = function(elem, name, force){
			if(name === 'background-position'){
				name = 'backgroundPosition';
			}
			if(name !== 'backgroundPosition' || !elem.currentStyle || elem.currentStyle[ name ]){
				return oldCurCSS.apply(this, arguments);
			}
			var style = elem.style;
			if ( !force && style && style[ name ] ){
				return style[ name ];
			}
			return oldCurCSS(elem, 'backgroundPositionX', force) +' '+ oldCurCSS(elem, 'backgroundPositionY', force);
		};
	}
	
	var oldAnim = $.fn.animate;
	$.fn.animate = function(prop){
		if('background-position' in prop){
			prop.backgroundPosition = prop['background-position'];
			delete prop['background-position'];
		}
		if('backgroundPosition' in prop){
			prop.backgroundPosition = '('+ prop.backgroundPosition;
		}
		return oldAnim.apply(this, arguments);
	};
	
	function toArray(strg){
		strg = strg.replace(/left|top/g,'0px');
		strg = strg.replace(/right|bottom/g,'100%');
		strg = strg.replace(/([0-9\.]+)(\s|\)|$)/g,"$1px$2");
		var res = strg.match(/(-?[0-9\.]+)(px|\%|em|pt)\s(-?[0-9\.]+)(px|\%|em|pt)/);
		return [parseFloat(res[1],10),res[2],parseFloat(res[3],10),res[4]];
	}
	
	$.fx.step. backgroundPosition = function(fx) {
		if (!fx.bgPosReady) {
			var start = $.curCSS(fx.elem,'backgroundPosition');
			
			if(!start){//FF2 no inline-style fallback
				start = '0px 0px';
			}
			
			start = toArray(start);
			
			fx.start = [start[0],start[2]];
			
			var end = toArray(fx.options.curAnim.backgroundPosition);
			fx.end = [end[0],end[2]];
			
			fx.unit = [end[1],end[3]];
			fx.bgPosReady = true;
		}
		//return;
		var nowPosX = [];
		nowPosX[0] = ((fx.end[0] - fx.start[0]) * fx.pos) + fx.start[0] + fx.unit[0];
		nowPosX[1] = ((fx.end[1] - fx.start[1]) * fx.pos) + fx.start[1] + fx.unit[1];           
		fx.elem.style.backgroundPosition = nowPosX[0]+' '+nowPosX[1];

	};
})(jQuery);