function navBarInit(param) {
  
     var cn = getCurrentNav();
    
     if( cn > "" && $(cn) != null )
         $(getCurrentNav()).className = "current";
}
function getCurrentNav() {
	return document.frmMainPageInfo.current_nav.value;
}
function NavTo(l,p,n) {
    
    doc = document.frmMainPageInfo;    
    eval("document.frmMainPageInfo.current_nav.value='link_id_" + n + "';");
    doc.page_id.value = p;
    doc.action = l;
    doc.submit();

}