function changePrivateImage(positive) {
	if (!positive) {
		document.getElementById("private").src="graphics/private_mouse.jpg"
	}
	else {
		document.getElementById("private").src="graphics/private.jpg"
	}
}
function changeBusinessImage(positive) {
	if (!positive) {
		document.getElementById("business").src="graphics/business_mouse.jpg"
	}
	else {
		document.getElementById("business").src="graphics/business.jpg"
	}
}