var browserName = ''; 
var browserNew = ''; 
function getIdProperty(id,property) { 
   var styleObject = document.getElementById( id ); 
   if (styleObject != null) { 
   styleObject = styleObject.style; 
   if (styleObject[property]) { 
   return styleObject[ property ]; 
   } 
   } 
   return (styleObject != null) ? 
   styleObject[property] : 
   null; 
   } 
function setIdProperty(id,property,value) { 
   var styleObject = document.getElementById( id ); 
   if (styleObject != null) { 
   styleObject = styleObject.style; 
   styleObject[ property ] = value; 
   } 
   } 
function getDisplay(id) { 
   if (browserNew) { 
   return getIdProperty(id,"display"); 
   } 
   else { 
   if (browserName == "NS") { 
   return document.layers[id].display; 
   } 
   else { 
   return document.all[id].style.display; 
   } 
   } 
   } 
function switchDisplay(id,value) { 
   if (browserNew) { 
   setIdProperty(id,"display",value); 
   } 
   else { 
   if (browserName == "NS") { 
   document.layers[id].display = value; 
   } 
   else { 
   document.all[id].style.display = value; 
   } 
   } 
   } 
function expandContent(id, param){ 
   if (getDisplay('t' + id) == 'none') { 
   switchDisplay('t'+id,'block'); 
   setIdProperty('a'+id, 'color', '#000000') 

   } else { 
   switchDisplay('t'+id,'none');   
   setIdProperty('a'+id, 'color', '#444444') 
   } 
}