var shownav = 0;
var hideinterval;
var showchapter = 0;
var mode = 0;
var aktmenueframe = 1;
var hideinterval2;
var hideinterval3;
var showbgcolornav = 0;

function showMenueFrame(frameID,frameURL,frameNAME){
    if (frameID != aktmenueframe){
	$('#menueFrameBtn_'+aktmenueframe).css('background-image','');
	aktmenueframe = frameID;
	$('#menueFrameBtn_'+frameID).css('background-image','url(media/bookview/spacer_trans.png)');
	document.getElementById('menueiframe'+frameNAME).src='bookview/'+frameURL;
    }
}
function destInt(){
    clearInterval(hideinterval);
}
function startInt(){
    destInt();
    hideinterval = setInterval(toggleNav,2000);
}
function toggleNav(wert){
    if ((shownav == 0 || wert == 1) && mode == 0){
	destInt();
	$("#smallnav").show();
	shownav = 1;
    }else{
	destInt();
	$("#smallnav").hide();
	shownav = 0;
    }
}
function toggleBtn(btnID){
    $("#btnOver_"+btnID).toggle();
}
function chapterFadeout(){
    $("#chapternav").hide();
}
function bgcolorLayerFadeout(){
    $("#bgcolornav").hide();
    clearInterval(hideinterval3);
}

function toggleChapter(wert){
    clearInterval(hideinterval2);
    if (showchapter == 0 || wert == 1){
	$("#chapternav").show();
	toggleNav(1);
	showchapter = 1;
    }else{
        hideinterval2 = setInterval(chapterFadeout,100);
	startInt();    
	showchapter = 0;
    }
}
function switchMode(wert){
    if (mode == 0 || wert == 1){
	mode = 1;
	$("#smallnav").fadeOut(function(){
	    $("#bignav").fadeIn();
	});
    }else{
	mode = 0;
	$("#bignav").fadeOut(function(){
	    $("#smallnav").fadeIn();
	});	
    }
}
function bgcolorLayer(wert){
    clearInterval(hideinterval3);
    if (showbgcolornav == 0 || wert == 1){
	$("#bgcolornav").show();
	showbgcolornav = 1;
    }else{
        hideinterval3 = setInterval(bgcolorLayerFadeout,100);
	showbgcolornav = 0;
    }
}
function setBGColor(col){
    $.ajax({
        type: "POST",
        url: "bookview/savebgsetting.php",
        data: "col="+col,
        success: function(myResponse){
    	    //top.location.href='book.php?bookID=&page=&preview=&MaxW=&tm=';
    	    top.location.reload();
	}
    })
}