function getEl(iD){
  var obj;
  if(document.getElementById){
      obj = document.getElementById(iD);
  }else if(document.all){
      obj = document.all[iD];
  }else if(document.layers){
      obj = document.layers[iD];
  }
  return obj;
}

function changeIsp ( sImg, sText ) {
  document.images.tmpStup.src = eval(sImg + '.src');
  getEl('ispName').innerHTML = sText;
}