var MainSub     = "../MainPages/";
var LinkSub	= "../LinkDetails/";

var PageNames	= "home.htm,whatwedo.htm,howwedo.htm,options.htm,login.htm,contact.htm";
var PageNamesR	= "homeR.htm,whatwedoR.htm,howwedoR.htm,optionsR.htm,loginR.htm,contactR.htm";
var PageList	= PageNames.split(",");
var PageListR	= PageNamesR.split(",");
var CurPageNum	= 0;

var DetailNames	= "rightmain.htm,dbms.htm,reldb.htm,dbdrivenweb.htm,normaldb.htm,asps.htm,css.htm";
var DetailNamesR	= "rightmainR.htm,dbmsR.htm,reldbR.htm,dbdrivenwebR.htm,normaldbR.htm,aspsR.htm,cssR.htm";
var DetailList	= DetailNames.split(",");
var DetailListR	= DetailNamesR.split(",");
var CurDetailNum	= 0;

var Pass		= "password";
var ePass		= "";
var GrantedMain	= 0;
var GrantedExgib	= 0;

function CheckPassword()  {	
	if (GrantedMain == 0)  {
		ePass = prompt("Please enter password", "");
		if (ePass == Pass) GrantedMain = 1;
		else 
		if (ePass != null) alert("Password is incorrect.");
	}
	if (GrantedMain == 1)   
		document.location = "MainGate";
}
function CheckAnyPassword(link)  {	
	if (GrantedExgib == 0)  {
		ePass = alert("Press Ok to enter.", "");
		GrantedExgib = 1;
	}
	if (GrantedExgib == 1)   
		document.location = link;
}
function ShowPage(PageNum)  {
	if (CurPageNum != PageNum) 
		ShowLinkDetail(0);
	CurPageNum = PageNum;
	MainMain.location = MainSub + PageList[PageNum];
}
function ShowPageR(PageNum)  {
	if (CurPageNum != PageNum)
		ShowLinkDetailR(0);
	CurPageNum = PageNum;
	MainMain.location = MainSub + PageListR[PageNum];
}
function ChangeLang(Language)  {
	if (Language == "r") {
		LeftMain.location = "leftmainR.htm";
		TopMain.location = "topmainR.htm";
		ShowPageR(CurPageNum)
		ShowLinkDetailR(CurDetailNum)
	} else {
		LeftMain.location = "leftmain.htm";
		TopMain.location = "topmain.htm";
		ShowPage(CurPageNum);
		ShowLinkDetail(CurDetailNum)
	}
}
function ShowLinkDetail(DetailNum) {
	CurDetailNum = DetailNum;
	RightMain.location = LinkSub + DetailList[DetailNum];
}
function ShowLinkDetailR(DetailNum) {
	CurDetailNum = DetailNum;
	RightMain.location = LinkSub + DetailListR[DetailNum];
}
function ButtonDown(button) {
	var Ssrc = button.src;
	if (Ssrc.charAt(Ssrc.length-5) != '_') 
	   button.src= Ssrc.slice(0, -4) +'_'+ Ssrc.slice(-4);
}
function ButtonUp(button) {
	var Ssrc = button.src;
	if (Ssrc.charAt(Ssrc.length-5) == '_')
	   button.src= Ssrc.slice(0, -5) + Ssrc.slice(-4);
}