var old = 'start'
function ci(target) {
	if(document.all)document.all(old).style.visibility='hidden'
	if(document.getElementById)document.getElementById(old).style.visibility='hidden'
	if(document.layers)document.layers[old].visibility='hide'
	old = target
	if(document.all)document.all(target).style.visibility='visible'
	if(document.getElementById)document.getElementById(target).style.visibility='visible'
	if(document.layers)document.layers[target].visibility='show'
	/* Opera = if(window.opera) */
}

function hideImg(target) {
	if(document.all)document.all(target).style.visibility='hidden'
	if(document.getElementById)document.getElementById(target).style.visibility='hidden'
	if(document.layers)document.layers[target].visibility='hide'
}

function hideALL() {
	hideImg('')
	hideImg('')
	hideImg('')
}