function setInstallStyles(fOK) {
	document.getElementById("installFailure").runtimeStyle.display = fOK ? "none" : "block";
	document.getElementById("installOK").runtimeStyle.display = fOK ? "block" : "none";
}
function okInstall() {
	setInstallStyles(true);
}
function noInstall() {
	setInstallStyles(false);
}