// detect browser 

NS4 = (document.layers) ? 1 : 0; 

IE4 = (document.all) ? 1 : 0; 

// W3C stands for the W3C standard 

W3C = (document.getElementById) ? 1 : 0;     



function makeVisible ( name ) { 

  var ele; 



  if ( W3C ) { 

    ele = document.getElementById(name); 

  } else if ( NS4 ) { 

    ele = document.layers[name]; 

  } else { // IE4 

    ele = document.all[name]; 

  } 



  if ( NS4 ) { 

    ele.visibility = "show"; 

  } else {  // IE4 & W3C & Mozilla 

    ele.style.visibility = "visible"; 

    ele.style.display = "inline"; 

  } 

} 



function makeInvisible ( name ) { 

  if (W3C) { 

    document.getElementById(name).style.visibility = "hidden"; 

    document.getElementById(name).style.display = "none"; 

  } else if (NS4) { 

    document.layers[name].visibility = "hide"; 

  } else { 

    document.all[name].style.visibility = "hidden"; 

    document.all[name].style.style.display = "none"; 

  } 

}