function setScrollbar() {
	var agt=navigator.userAgent.toLowerCase();
	alert(agt);
	
	if (agt.indexOf("firefox") != -1) {
		alert(agt);
		bd = document.getElementsByTagName("body").item(0);
		alert(bd);
		bd.style.overflow="-moz-scrollbars-vertical";
	}
	
	//var ver = parseFloat(navigator.appVersion);
	alert(agt.indexOf("netscape"));
	var ver=agt.substring(agt.indexOf("netscape"))
	var version = ver.substr(9,3)
	//alert(version);
	alert(parseFloat(version));
	if (agt.indexOf("netscape") != -1 && parseFloat(version)>=7.2) {
		alert(agt);
		bd = document.getElementsByTagName("body").item(0);
		alert(bd);
		bd.style.overflow="-moz-scrollbars-vertical";
		//bd.style.overflow-y="scroll";
	}

}