function openImageViewer(imageId)
 {
  var newWin;
  var url = 'ImageViewer.aspx?ImageId=' + imageId
  var settings = 'status=no,toolbar=no,menubar=no,location=no,scrollbars=yes,resizable=yes';
  var newWin = window.open(url,'',settings,false);
  newWin.focus();
 }	

function openSightings(url)
 {
  var newWin;
  var width = 980;
  var height = 700;  
  var settings = 'status=no,toolbar=no,menubar=no,location=no,scrollbars=yes,resizable=yes';
  settings = settings + ',height=' + height + ',width=' + width + ',top=0,left=0';
  var newWin = window.open(url,'',settings,false);
  newWin.focus();
 }	
 
function openUrl(url)
 {
  var newWin;
  var settings = 'status=no,toolbar=no,menubar=no,location=no,scrollbars=yes,resizable=yes';
  var newWin = window.open(url,'',settings,false);
  newWin.focus();
 }