function roll_pic(th,file,nr,origx, origy ) {
	document.images['pic-' + nr].src = th;			 
	obj = document.getElementById('url-' + nr) ;
	obj.href = "javascript:showPicture('" + file + "'," + origx + "," + origy + ");";
}

var picx = 0;
var picy = 0;
var picname = 0;

function showPicture(pic,x,y) {
  picx = x + 5;
  picy = y + 100;
  picname = '../' + pic;
  var parm = 'height=' + picy + ',width=' + picx + ',scrollbars=no,status=no,toolbar=no,menubar=no,location=no,resizable=no,titlebar=preview';
  window.open('shared/preview.php','preview',parm);
}