var docImagesName	= new Array();
	var docImagesOff	= new Array();
	var docImagesOn		= new Array();
	var docImagesSmallName = new Array()
	var docImagesSmallOn	= new Array();	
	var docImagesSmallOff	= new Array();	
	var placeholder
 
	function preloadImages()
	{
		if (document.images)
		{
			for (i = 0; i < arguments.length; ++i)
			{
				docImagesName[i] = arguments[i];

				docImagesOff[i] 		= new Image();
				docImagesOff[i].src		= mediaDirectory + arguments[i] + '_off.gif';
				docImagesOn[i]			= new Image();
				docImagesOn[i].src 		= mediaDirectory + arguments[i] + '_on.gif';
	
			}
		}
	}

	
	function roll(img,onoff,textNo)
	{

		
		if (document.images)
		{
			var idx,ref;
			for (idx = 0; idx < docImagesName.length; ++idx)
			{
				if (docImagesName[idx] == img)
				{
					break;
				}
			}
			
			ref = docImagesName[idx];
			
			if(arguments.length > 2){
				ref += textNo
			}
			
			if (onoff == 'on')
			{	
				document.images[ref].src = docImagesOn[idx].src;
				

			}
			else
			{
				document.images[ref].src = docImagesOff[idx].src;
	
			}
		}
	}