//**********************************************************************
//
//	File:
//	js/globalnav_top.js
//
//	Purpose:
//	Shows / hides second level global nav on tab rollovers
//
//	Notes:
//
//**********************************************************************




//***********************************************************************
//
//  Function:
//  globalTabOn
//
//  Purpose:
//  Rollovers / image swap
//
//  Parameters:
//	theNumber:	The number of the tab to change states
//
//  Return value:
//	None.
//
//  Notes:
//
//***********************************************************************


function sglobalTabOn(theNumber) {
	
	if (document.getElementById) {
	
		var stheId = "stab_"+theNumber;
	
		var stheImage = document.getElementById(stheId);
		
		stheImage.src = srolloverImages[stheId].src;
	
		return true;	
		
	}
	
}





//***********************************************************************
//
//  Function:
//  globalTabOff
//
//  Purpose:
//  Rollouts / image swap
//
//  Parameters:
//	theNumber:	The number of the tab to change states
//
//  Return value:
//	None.
//
//  Notes:
//
//***********************************************************************


function sglobalTabOff(theNumber) {
	
	if (document.getElementById) {
	
		var stheId = "stab_"+theNumber;

		var stheImage = document.getElementById(stheId);
		
		stheImage.src = sdefaultImages[stheId].src;
	
		return true;	
		
	}
	
}





//***********************************************************************
//
//  Function:
//  preloadHeaderImages
//
//  Purpose:
//  Preloads images
//
//  Parameters:
//
//  Return value:
//	None.
//
//  Notes:
//
//***********************************************************************


var srolloverImages = new Object();
var sdefaultImages = new Object();
// preload images for rollovers
function spreloadDefaultHeaderImages() {
	if (document.images) {
		srolloverImages["stab_0"] = new Image();
		srolloverImages["stab_0"].src = "media/images/screening_tabs/featured_on.gif";
		srolloverImages["stab_1"] = new Image();
		srolloverImages["stab_1"].src = "media/images/screening_tabs/trailers_on.gif";
		srolloverImages["stab_2"] = new Image();
		srolloverImages["stab_2"].src = "media/images/screening_tabs/extras_on.gif";	
	}s
}
function spreloadMembersHeaderImages() {
	if (document.images) {
		srolloverImages["stab_0"] = new Image();
		srolloverImages["stab_0"].src = "media/images/screening_tabs/featured_on.gif";
		srolloverImages["stab_1"] = new Image();
		srolloverImages["stab_1"].src = "media/images/screening_tabs/trailers_on.gif";
		srolloverImages["stab_2"] = new Image();
		srolloverImages["stab_2"].src = "media/images/screening_tabs/extras_on.gif";	
		sdefaultImages["stab_0"] = new Image();
		sdefaultImages["stab_0"].src = "media/images/screening_tabs/featured_off.gif";
		sdefaultImages["stab_1"] = new Image();
		sdefaultImages["stab_1"].src = "media/images/screening_tabs/trailers_off.gif";
		sdefaultImages["stab_2"] = new Image();
		sdefaultImages["stab_2"].src = "media/images/screening_tabs/extras_off.gif";
	}
}