function preLoad()
{
if (document.images)
	{
	var suffix = new Array('on', 'off');
	var imagePath = '/images/';
	var imageExt = 'gif';
	var argLen = arguments.length;
	var sufLen = suffix.length;
	for (var i = 0; i < argLen; i++)
		{
		var arg = arguments[i];
				for (var j = 0; j < sufLen; j++)
				{
				var suf = suffix[j];
				self[arg + '_' + suf] = new Image();
				self[arg + '_' + suf].src = imagePath + arg + '_' + suf + '.' + imageExt;
				}
		}
	loaded = true;
	}
}

function rollover(iName, iState)
{
if (document.images && loaded)
	{
	document.images[iName].src = self[iName + '_' + iState].src;
	}
}

function rollover_multi(iName, iSource, iState)
{
if (document.images && loaded)
	{
	document.images[iName].src = self[iSource + '_' + iState].src;
	}
}