function ChooseImage()
{
	var nDate = new Date();

	if ( nDate.getUTCMilliseconds() < 333 )
	{
		document.getElementById('imgMain').src = "images/1.jpg";
	}
	else if ( nDate.getUTCMilliseconds() < 666 )
	{
		document.getElementById('imgMain').src = "images/2.jpg";
	}
	else
	{
		document.getElementById('imgMain').src = "images/3.jpg";
	}
}

function LaunchLargeImage( src )
{
	var oDocument = window.open( "largeimage.htm?src=" + src, null, "height=650, width=800, status=no, toolbar=no, menubar=no, location=no" );
}

function SetLargeImageSrc()
{
	var sQuerystring = window.location.search.substring(1);
	if( sQuerystring.length > 0 )
	{
		sQuerystring = sQuerystring.split( "=" );
	}

	document.getElementById('imgProduct').src = "images/" + sQuerystring[1];
}