// JavaScript Document

//Allows Flash piece to know if nav is active;
var navOn = false;
function navOnStatus(){
	return navOn;
}

//Jaavascript to run main navigation bar.
$(document).ready(function() {
	

	function megaHoverOver(){
		
		
		$(this).find(".sub").stop().fadeTo('fast', 1).show( function(){
		navOn = true;
		});
			
		//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(){ 
	  
	  $(this).find(".sub").stop().fadeTo('fast', 0, function() {
			$(this).hide(); 
			navOn = false;			
	  });
	}


	var config = {    
		 sensitivity: 1, // number = sensitivity threshold (must be 1 or higher)    
		 interval: 50, // 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);

	

});

//  Hack for Internet Explorer 6, user rollovers over sub menu, main menu goes back to original state -
	function getInternetExplorerVersion()
	// Returns the version of Internet Explorer or a -1
	// (indicating the use of another browser).
	{
	  var rv = -1; // Return value assumes failure.
	  if (navigator.appName == 'Microsoft Internet Explorer')
	  {
		var ua = navigator.userAgent;
		var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
		if (re.exec(ua) != null)
		  rv = parseFloat( RegExp.$1 );
	  }
	  return rv;
	}
	function checkVersion()
	{
	  var msg = "You're not using Internet Explorer.";
	  var ver = getInternetExplorerVersion();
	  var boolIE6 = false;
	  
	  if ( ver > -1 )
	  {
		if ( ver >= 7.0 ) {
		  msg = ver;
		  boolIE6 = false;
		}
		else {
		  msg = ver;
		  boolIE6 = true;
		}
	  }
	  //alert( msg + " " + boolIE6 );
	  return boolIE6;
	}


	function IE6PatchOn(theClass) {
		var boolIE6 = checkVersion()
		if (boolIE6) {
		theElementID = "ul#topnav a." + theClass;
		$(theElementID).css('background-position','left bottom');
		}
			
	}
	
	function IE6PatchOff(theClass) {
		var boolIE6 = checkVersion()
		if (boolIE6) {
		theElementID = "ul#topnav a." + theClass;
		$(theElementID).css('background-position','left top');
		}
	}
	
function MM_swapImgRestore() { //v3.0
	var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}