function show(shID) {
	if (document.getElementById(shID)) {
		if (document.getElementById(shID).style.visibility != 'visible') {
			document.getElementById(shID).style.visibility = 'visible';
		}
		if (document.getElementById(shID).style.display != 'block') {
			document.getElementById(shID).style.display = 'block';
		}
	}
}

	function Hide(shID) {
	if (document.getElementById(shID)) {
		if (document.getElementById(shID).style.visibility != 'hidden') {
			document.getElementById(shID).style.visibility = 'hidden';
		}
		if (document.getElementById(shID).style.display != 'none') {
			document.getElementById(shID).style.display = 'none';
		}
	}
}


	function swap(shID) {
	if (document.getElementById(shID)) {
		if (document.getElementById(shID).style.visibility != 'visible') {
			document.getElementById(shID).style.visibility = 'visible'
			show(shID+'td')
		}
		else if (document.getElementById(shID).style.visibility != 'hidden') {
			document.getElementById(shID).style.visibility = 'hidden';
			Hide(shID+'td')
		}

		if (document.getElementById(shID).style.display != 'block') {
			document.getElementById(shID).style.display = 'block';
		}
		else if (document.getElementById(shID).style.display != 'none') {
			document.getElementById(shID).style.display = 'none';
		}
	}
}