function newImage(arg)
{
	if (document.images)
		{
		rslt = new Image();
		rslt.src = arg;
		return rslt;
		};
}

function changeImages()
{
	if (document.images && (preloadFlag == true))
		{
		for (var i=0; i<changeImages.arguments.length; i+=2)
			{
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
			};
		};
}

var preloadFlag = false;
function preloadImages()
{
	var loadList = new Array;
	var listLen = preLoadList.length;
	
	for( counter = 0 ; counter < listLen ; counter++ )
		{	
		if (document.images)
			{
			loadList[counter] = newImage( preLoadList[counter] );
	
			preloadFlag = true;
			};
		};

	if( listLen == 0 )
		{
		preloadFlag = true;
		};
}