// JavaScript Document
function changeCSS(menuId)
{

switch(menuId)
{
 case 'menuitem1':
 document.getElementById('menuitem2').className='';
 document.getElementById('menuitem3').className='';
 document.getElementById('menuitem4').className='';
 document.getElementById('menuitem5').className='';
 document.getElementById(menuId).className='selected';

 break;
  case 'menuitem2':
 document.getElementById('menuitem1').className='';
 document.getElementById('menuitem3').className='';
 document.getElementById('menuitem4').className='';
 document.getElementById('menuitem5').className='';
 document.getElementById(menuId).className='selected';

 break;
  case 'menuitem3':
  
 document.getElementById('menuitem2').className='';
 document.getElementById('menuitem1').className='';
 document.getElementById('menuitem4').className='';
 document.getElementById('menuitem5').className='';
 document.getElementById(menuId).className='selected';
 break;
  case 'menuitem4':
  
 document.getElementById('menuitem2').className='';
 document.getElementById('menuitem3').className='';
 document.getElementById('menuitem1').className='';
 document.getElementById('menuitem5').className='';
 document.getElementById(menuId).className='selected';
 break;
  case 'menuitem5':

 document.getElementById('menuitem2').className='';
 document.getElementById('menuitem3').className='';
 document.getElementById('menuitem4').className='';
 document.getElementById('menuitem1').className='';
 document.getElementById(menuId).className='selected';
 break;
}
}