if (document.getElementById){
	document.write('<style type="text/css">')
	document.write('.showhide{display:none;}')
	document.write('</style>')
}

function showhide(id) {
	if (document.getElementById(id).style.display != 'block') {
		document.getElementById(id).style.display = 'block'
	} else {
		document.getElementById(id).style.display = 'none'
	}
}