function roll() {
	var rollIDs = roll.arguments;
	for (var i = 0; i < (rollIDs.length); i++)
	{
		if ( rollIDs[i].style.display == 'none') { rollIDs[i].style.display = 'block' }
                else { rollIDs[i].style.display = 'none' }
	}
}

function show() {
	var showIDs = show.arguments;
	for (var i = 0; i < (showIDs.length); i++)
	{
		showIDs[i].style.display = 'block'
	}
}

function hide() {
	var hideIDs = hide.arguments;
	for (var i = 0; i < (hideIDs.length); i++)
	{
		hideIDs[i].style.display = 'none'
	}
}

function klik(ID,el) {
        if (ID.srcTmp==null) { ID.srcTmp = ID.src; }
        if (ID.src != ID.srcTmp) { ID.src = ID.srcTmp; }
        else { ID.src = el }
}