function SelectBook(){

removeAllOptions(document.foSelect.bookID);
addOption(document.foSelect.bookID, "0", "Select book", "");

switch(document.foSelect.groupID.value) {

  case '6':
    break;

  case '7':
    break;

  case '2':
    addOption(document.foSelect.bookID,"38","");
    addOption(document.foSelect.bookID,"2","Feoffee accounts");
    break;

  case '1':
    addOption(document.foSelect.bookID,"1","D. of Kingston accts1722");
    addOption(document.foSelect.bookID,"3","D. of Kingston accts 1725");
    addOption(document.foSelect.bookID,"4","D. of Kingston accts 1733");
    addOption(document.foSelect.bookID,"5","D. of Kingston accts 1735");
    addOption(document.foSelect.bookID,"6","D. of Kingston accts 1736");
    addOption(document.foSelect.bookID,"7","D. of Kingston accts 1737");
    addOption(document.foSelect.bookID,"9","D. of Kingston accts 1738");
    addOption(document.foSelect.bookID,"12","D. of Kingston accts 1739");
    addOption(document.foSelect.bookID,"13","D. of Kingston accts 1740");
    addOption(document.foSelect.bookID,"14","D. of Kingston accts 1741");
    addOption(document.foSelect.bookID,"16","D. of Kingston accts 1742");
    addOption(document.foSelect.bookID,"18","D. of Kingston accts 1743");
    addOption(document.foSelect.bookID,"20","D. of Kingston accts 1746");
    addOption(document.foSelect.bookID,"23","D. of Kingston accts 1748");
    addOption(document.foSelect.bookID,"22","D. of Kingston accts 1747");
    addOption(document.foSelect.bookID,"24","D. of Kingston accts 1749");
    addOption(document.foSelect.bookID,"25","D. of Kingston accts 1750");
    addOption(document.foSelect.bookID,"26","D. of Kingston accts 1751");
    addOption(document.foSelect.bookID,"27","D. of Kingston accts 1752");
    addOption(document.foSelect.bookID,"28","D. of Kingston accts 1753");
    addOption(document.foSelect.bookID,"29","D. of Kingston accts 1754");
    addOption(document.foSelect.bookID,"31","D. of Kingston accts 1755");
    addOption(document.foSelect.bookID,"32","D. of Kingston accts 1756");
    addOption(document.foSelect.bookID,"33","D. of Kingston accts 1757");
    addOption(document.foSelect.bookID,"34","D. of Kingston accts 1758");
    addOption(document.foSelect.bookID,"35","D. of Kingston accts 1759");
    addOption(document.foSelect.bookID,"36","D. of Kingston accts 1760");
    addOption(document.foSelect.bookID,"37","D. of Kingston accts 1761");
    addOption(document.foSelect.bookID,"21","D. of Kingston accts 1762");
    addOption(document.foSelect.bookID,"10","D. of Kingston accts 1763");
    break;
  }      // end of JS switch
}       // end of JS function SelectBook()


function removeAllOptions(selectbox)
{
var i;
for(i=selectbox.options.length-1;i>=0;i--)
{
//selectbox.options.remove(i);
selectbox.remove(i);
}
}


function addOption(selectbox, value, text )
{
var optn = document.createElement("OPTION");
optn.text = text;
optn.value = value;

selectbox.options.add(optn);
}