var isNav=false;
var isIE=false;
var coll;
var style;

if( parseInt(navigator.appVersion) >= 4 && parseInt(navigator.appVersion) < 5 ){
	if(navigator.appName == "Netscape"){
		isNav = true;
		coll = "document";
		style = "";
	} else {
		isIE = true;
		coll="document.all";
		style = ".style";
	}
}