function showcontent(objID)
{
	var status = document.getElementById(objID).style.display;
	if (status == 'none')
	{
		document.getElementById(objID).style.display = 'block';
	} else {
		document.getElementById(objID).style.display = 'none';
	}
}


function glossary(objID, total)
{
	var letterID = 'letter' + objID;
	var glossaryID = 'glossary' + objID;
	var i;
	for (i=0; i<total; i++)
	{
		var letter = 'letter' + i;
		var glossary = 'glossary' + i;
		document.getElementById(letter).style.display = 'none';
		document.getElementById(glossary).style.display = 'none';
	}
	document.getElementById(letterID).style.display = 'block';
	document.getElementById(glossaryID).style.display = 'block';
}


function loginLogout(objHide, objVisible)
{
	document.getElementById(objHide).style.display = 'none';
	document.getElementById(objVisible).style.display = 'block';
}

function inputForm(objID, total)
{
	var i;
	var step = 'step' + objID;
	var stepSymbol = 'stepSymbol' + objID;
	var stepSymbolClassName = document.getElementById(stepSymbol).className;
	document.getElementById('submitOk').style.display = 'none';
		
	for (i=0; i<total; i++)
	{
		var allStep = 'step' + i;
		document.getElementById(allStep).style.display = 'none';
	}
	document.getElementById(step).style.display = 'block';
	
	for (i=0; i<total; i++)
	{
		var allStepSymbol = 'stepSymbol' + i;
		var allStepSymbolClassName = document.getElementById(allStepSymbol).className;
		if (allStepSymbolClassName.indexOf('first') != -1)
		{
			document.getElementById(allStepSymbol).className = 'first';
		} else
		if (allStepSymbolClassName.indexOf('last') != -1)
		{
			document.getElementById(allStepSymbol).className = 'last';
		} else
		{
			document.getElementById(allStepSymbol).className = '';
		}
	}
	
	if (stepSymbolClassName.indexOf('first') != -1)
	{
		document.getElementById(stepSymbol).className = 'active first';
	} else
	if (stepSymbolClassName.indexOf('last') != -1)
	{
		document.getElementById(stepSymbol).className = 'active last';
	} else
	{
		document.getElementById(stepSymbol).className = 'active';
	}
}

function submitOk(objID, total)
{
	for (i=0; i<total; i++)
	{
		var allStep = 'step' + i;
		document.getElementById(allStep).style.display = 'none';
	}
	var lastStepSymbol = 'stepSymbol' + (total-1);
	document.getElementById(lastStepSymbol).className = 'last';
	document.getElementById(objID).style.display = 'block';
}


function showtab(objID, total)
{
	var tabID = 'tab' + objID;
	var tabContentID = 'tabcontent' + objID;
	var i;
	
	for (i=0; i<total; i++)
	{
		var allTabID = 'tab' + i;
		var allTabContentID = 'tabcontent' + i;
		document.getElementById(allTabID).className = '';
		document.getElementById(allTabContentID).style.display = 'none';
	}
	
	document.getElementById(tabID).className = 'active';
	document.getElementById(tabContentID).style.display = 'block';
}