function chgClass(layerID, linkID, linkContent)
{
	var i=1;
	while(document.getElementById(linkID+i))
	{
		document.getElementById(linkID+i);
		document.getElementById(linkContent+i).style.display='none';
		i+=1;
	}
	document.getElementById(linkID+layerID);
	document.getElementById(linkContent+layerID).style.display='block';
}
function showlayer(layerID, frameID)
{
	document.getElementById(layerID).style.display='block';
	document.getElementById(frameID).style.display='block';
}
function hidelayer(layerID, frameID)
{
	document.getElementById(layerID).style.display='none';
	document.getElementById(frameID).style.display='none';
}

function addppg(showLayerID)
{
	if(document.getElementById(showLayerID).style.display=='none')
	{document.getElementById(showLayerID).style.display='block';}
	else
	{document.getElementById(showLayerID).style.display='none';}
}

function chgContent(content1, content2, layerid)
{
	if(document.getElementById(layerid).innerHTML==content1)
	{document.getElementById(layerid).innerHTML=content2;}
	else
	{document.getElementById(layerid).innerHTML=content1;}
}

function changeTab(obj, buttons, clickName, container)
{
	i=1;
	while(document.getElementById(clickName+i))
	{
		document.getElementById(clickName+i);
		document.getElementById(container+i).style.display='none'
		i++;
	}
	document.getElementById(clickName+obj);
	document.getElementById(container+obj).style.display='block';
	document.getElementById(buttons).style.display='block';
}

function showComplete(layerid, height)
{
	if(document.getElementById(layerid).style.height=='auto')
	document.getElementById(layerid).style.height=height;
	else
	document.getElementById(layerid).style.height='auto'
}
function showOne(layerid, layername)
{
	var i=1;
	var layerobj=gbi(layername+i);
	while(layerobj)
	{
		layerobj.style.display='none'
		i=i+1;
		layerobj=gbi(layername+i);
	}
	var layerobjSel=gbi(layername+layerid);
	layerobjSel.style.display='block';
}
function hideOne(layerid, layername)
{
	var i=1;
	var layerobj=gbi(layername+i);
	while(layerobj)
	{
		layerobj.style.display='block'
		i=i+1;
		layerobj=gbi(layername+i);
	}
	var layerobjSel=gbi(layername+layerid);
	layerobjSel.style.display='none';
}
function gbi(layerid)
{
	return document.getElementById(layerid);
}