function showSubMenu(menuId){
	if (brwsVer>=4) {
		if (curSubMenu!='') hideSubMenu();
		if (document.all) {
			eval('document.all.'+menuId).style.visibility='visible';
		} else {
			eval('document.'+menuId).visibility='show';
		}
		curSubMenu=menuId;
	}
}
	
function hideSubMenu(){
	if (brwsVer>=4) {
		if (document.all) {
			eval('document.all.'+curSubMenu).style.visibility='hidden';
		} else {
			eval('document.'+curSubMenu).visibility='hide';
		}
		curSubMenu='';
	}
}

function showHelpDialog()
{
	if (document.all.dSearchHelp.style.visibility == 'hidden')
		document.all.dSearchHelp.style.visibility='visible';
	else	
		document.all.dSearchHelp.style.visibility='hidden';
}
	
var brwsVer=parseInt(navigator.appVersion);
var timer;
var curSubMenu='';