var curPg = 0;
function tabDown(tab) {
 if (tab != curPg) { 
   i = document.getElementById("ti"+tab);
   t = document.getElementById("tt"+tab);
   i.src="/pics/site/tab_down.png";
   t.style.color="#000";
 }  
}  
function tabUp(tab) {
 if (tab != curPg) { 
   i = document.getElementById("ti"+tab);
   t = document.getElementById("tt"+tab);
   i.src="/pics/site/tab_up.png";
   t.style.color="#FFF";
 }
}
function setPage(pg) {
  tabDown(pg);
  document.getElementById("ti"+pg).src="/pics/site/tab_glo.png";
  curPg = pg;
}