var myimages=new Array();
function preloadimages()
{
	for (i=0;i<preloadimages.arguments.length;i++) 
	{
		myimages[i]=new Image()
		myimages[i].src=preloadimages.arguments[i]
	}
}

function __swapimage(imgSrc, thumbelement, thumbsrcin, thumbsrcout)
{
	var img = document.getElementById('imagenormal');
	var thumb = document.getElementById(thumbelement);
	
	img.src = imgSrc;
	thumb.src = thumbsrcin;
alert(img.src + ' ' + thumb.src);	
	for (i=1;i<=myimages.length;i++) 
	{
		if(i != thumbelement) 
		{
			var thumb = document.getElementById(i);
			thumb.src = thumbsrcout;
		}
	}
	return false;
}


function swapimage(imgSrc, thumbelement, thumbsrcin, thumbsrcout)
{
	var img = document.getElementById('imagenormal');
	
	img.src = imgSrc;
    
    var timg = document.getElementById(thumbelement);
    //...
	return false;
}