function showButtons() 	
{
	var foundNext=0;
	var div;
	var prevButton=document.getElementById("prevButton");

	if (currentTab.id.indexOf("tab1")>-1)
		prevButton.innerHTML=" ";
	else
		prevButton.innerHTML="<a href='#' class='button-prev' onclick='movePrev()'><< Previous</a>";
	var nextButton=document.getElementById("nextButton");
	if (currentTab.id.indexOf("tab"+totalTabCount)>-1)
		nextButton.innerHTML="&nbsp;";
	else
	{
		var tabid=currentTab.id.substr(currentTab.id.length-1,currentTab.id.length);	
		var cTab=eval(tabid)+1;
		while (cTab<=totalTabCount)
		{
			div = document.getElementById("tab"+cTab);
			if (div.style.display!="none")
			{
				foundNext=1;
				break;
			}
			else
				cTab = eval(cTab)+1;
		}	
		if (foundNext==1)
			nextButton.innerHTML="<a href='#' class='button-next' onclick='moveNext()'>Next >></a>";
		else
			nextButton.innerHTML="&nbsp;";
	}

}


function showButtons2() 	
{
	var foundNext=0;
	var div;
	var prevButton=document.getElementById("prevButton2");

	if (currentTab.id.indexOf("tab1")>-1)
		prevButton.innerHTML="&nbsp;";
	else
		prevButton.innerHTML="<a href='#' class='button-prev' onclick='movePrev()'>Previous</a>";
	var nextButton=document.getElementById("nextButton2");
	if (currentTab.id.indexOf("tab"+totalTabCount)>-1)
		nextButton.innerHTML="&nbsp;";
	else
	{
		var tabid=currentTab.id.substr(currentTab.id.length-1,currentTab.id.length);	
		var cTab=eval(tabid)+1;
		while (cTab<=totalTabCount)
		{
			div = document.getElementById("tab"+cTab);
			if (div.style.display!="none")
			{
				foundNext=1;
				break;
			}
			else
				cTab = eval(cTab)+1;
		}	
		if (foundNext==1)
			nextButton.innerHTML="<a href='#' class='button-next' onclick='moveNext()'></a>";
		else
			nextButton.innerHTML="&nbsp;";
	}

}

function moveNext()
{
	var tabid=currentTab.id.substr(currentTab.id.length-1,currentTab.id.length);	
	var cTab=eval(tabid)+1;
	var div;
	while (cTab<=totalTabCount)
	{
		div = document.getElementById("tab"+cTab);
		if (div.style.display!="none")
		{
			showPane(div);	
			break;
		}
		else
			cTab=eval(cTab)+1;
	}
	if ((window.showNav) && (showNav==1))
		showButtons();
	if ((window.showNav2) && (showNav2==1))
		showButtons2();
	window.scrollTo(1,1);
}

function movePrev()
{
	var tabid=currentTab.id.substr(currentTab.id.length-1,currentTab.id.length);	
	var cTab=eval(tabid)-1;
	var div;
	while (cTab>0)
	{
		div = document.getElementById("tab"+cTab);
		if (div.style.display!="none")
		{
			showPane(div);	
			break;
		}
		else
			cTab=eval(cTab)-1;
	}
	if ((window.showNav) && (showNav==1))
		showButtons();
	if ((window.showNav2) && (showNav2==1))
		showButtons2();
	window.scrollTo(1,1);
}