function movepic(img_name) {
theSrc = document.getElementById('image' + img_name).src; 
theName = document.getElementById('image' + img_name).name; 
    if (theName==0)
	{
		var temp = new Array();
		temp = theSrc.split('/tnails/');
		newSrc = temp[0] + "/" + temp[1];
	}
	else
	{
		var temp = new Array();
		temp = theSrc.split('/tnails/');
		newSrc = temp[0] + "/tnails_big/" + temp[1];
	}

document.getElementById('theBigImage').src = newSrc; 
}