function GetElement(strElement) {
  if (document.getElementById) {        
    // IE5+, Netscape 6, Mozilla        
    return (document.getElementById(strElement));      
  } 
  else if (document.all) { 
    // IE4      alert('nr 2'); 
    return (eval("document.all." + strElement)); 
  }      
  else if (document.layers) { 
    // Netscape 4 
    alert('nr 3'); 
    return (eval("document." + strElement)); 
  } 
  else {      // Crap! 
    alert('kom til crap'); 
    return (null); 
  } 
}

function HideElm(strElement) {
GetElement(strElement).style.visibility='hidden'; 
GetElement(strElement).style.display='none';
}

function ShowElm(strElement, displayStyle) {
GetElement(strElement).style.visibility='visible'; 
GetElement(strElement).style.display=displayStyle;
}