var loaded = false;

function preLoad()
{
	var iPath = 'images/';
	var suffixes = new Array('over', 'out');
	var iExt = 'gif';
	if (document.images)
	{
		var iLength = preLoad.arguments.length;
		for(var i = 0; i < iLength; i++)
		{
			var image = arguments[i];
			var suffixesLength = suffixes.length;
			for(j = 0; j < suffixesLength; j++)
			{
				var suffix = suffixes[j];
				self[image + '_' + suffix] = new Image();
				self[image + '_' + suffix].src = iPath + image + '_' + suffix + '.' + iExt;
			}
		}
		loaded = true;
	}
}
function rollOver(iName, iState)
{
	if (document.images && loaded)
	{
		document.images[iName].src = self[iName + '_' + iState].src;
	}
}