pics = new Array();
var objCount = 0; //    web-
var result;

function preload(name, first, second)
{
	//        
	pics[objCount] = new Array(3);
	pics[objCount][0] = new Image();
	pics[objCount][0].src = first;
	pics[objCount][1] = new Image();
	pics[objCount][1].src = second;
	pics[objCount][2] = name;
	objCount++;
}

function on(name)
{
	for (i = 0; i < objCount; i++)
	{
		if (document.images[pics[i][2]] != null)
			if (name != pics[i][2])
			{
				//       
				document.images[pics[i][2]].src = pics[i][0].src;
			}else{
				//   ,     
				document.images[pics[i][2]].src = pics[i][1].src;
			}
	}
}

function off()
{
	for (i = 0; i < objCount; i++)
	{
		//      
		if (document.images[pics[i][2]] != null)
			document.images[pics[i][2]].src = pics[i][0].src;
	}
}