var W3C, IE4, NS4;
var docObj, styleObj, noStyleObj;


if (document.layers) {
	NS4         = true;
	docObj      = "document.";
	styleObj    = "";
    noStyleObj  = "";
}
if (document.all && !document.getElementById) {
	IE4         = true;
	docObj      = "document.all.";
	styleObj    = ".style";
    noStyleObj  = "";
}
if (document.getElementById) {
	W3C         = true;
	docObj      = "document.getElementById('";
	styleObj    = "').style";
    noStyleObj  = "')";
}