function PopImage(imageName) 
{
 if (window.showModalDialog) 
 {
  window.showModalDialog("ImagePopUp.aspx?id=" + imageName,"Fizioterapeut-Čop", "dialogWidth:580px;dialogHeight:400px");
 } 
 else //Mozilla
 {
  window.open('ImagePopUp.aspx?id=' + imageName,'Fizioterapeut-Čop', 'height=580px,width=400,toolbar=no,directories=no,status=no, menubar=no,scrollbars=no,resizable=no,modal=yes'); 
 }
}