// JavaScript Document
// Controls main menu


$(document).ready(function() {
			
	$('ul#topnav .button').mouseover(function() {
		$('ul#topnav .button').not(this).css("background-position", "left top").css("opacity", "1");				
		$('ul#topnav .sub').not($(this).next('.sub')).hide(); // hide all subs except the selected sub		
	});
				
	function megaHoverOver() {		
		$(this).find(".button").css("background-position","left bottom").css("opacity", "0.99");		
		$(this).find(".sub").stop().fadeTo(0, 1.0).show();    // 1.0 is the transparency level 
			
		//Calculate width of all ul's
		(function($) { 
			jQuery.fn.calcSubWidth = function() {
				rowWidth = 0;
				//Calculate row
				$(this).find("ul").each(function() {					
					rowWidth += $(this).width(); 
				});	
			};
		})(jQuery); 
		
		if ( $(this).find(".row").length > 0 ) { //If row exists...
			var biggestRow = 0;	
			//Calculate each row
			$(this).find(".row").each(function() {							   
				$(this).calcSubWidth();
				//Find biggest row
				if(rowWidth > biggestRow) {
					biggestRow = rowWidth;
				}
			});
			//Set width
			$(this).find(".sub").css({'width' :biggestRow});
			$(this).find(".row:last").css({'margin':'0'});
			
		} else { //If row does not exist...
			
			$(this).calcSubWidth();
			//Set Width
			$(this).find(".sub").css({'width' : rowWidth});
			
		}
	}
	
	function megaHoverOut(){
		
		var buttonCheck = false;
				
		$(".button").not($(this).find(".button")).each(function() {
			// check to see if any other buttons are active				
			if ($(this).css("opacity")=="0.99") {			
				buttonCheck = true;				
				return false;
			}		
		}); 
		
		if (!buttonCheck) {
		  	activeButton = $(this).find('.button');
			activeButton.css("opacity", "1");
			setTimeout("activeButton.css('background-position','left top')", 150);
			buttonCheck = false;
	  		$(this).find(".sub").stop().fadeTo('200', 0, function() {
		  		$(this).hide();				  		   
	  		});
		}
	}


	var config = {    
		 sensitivity: 2, // number = sensitivity threshold (must be 1 or higher)    
		 interval: 0, // number = milliseconds for onMouseOver polling interval    
		 over: megaHoverOver, // function = onMouseOver callback (REQUIRED)    
		 timeout: 100, // number = milliseconds delay before onMouseOut    
		 out: megaHoverOut // function = onMouseOut callback (REQUIRED)    
	};

	$("ul#topnav li .sub").css({'opacity':'0'});
	$("ul#topnav li").hoverIntent(config);


});