function sniffer(){
	var agent = navigator.userAgent.toLowerCase()
	var isIE = agent.indexOf("msie")!=-1
	var isNS = navigator.appName.indexOf("Netscape")!=1
	var isMac = agent.indexOf("mac")>0
	var isWin = agent.indexOf("win")>0

	if(isIE && isWin) {document.write('<link rel=\"stylesheet\" type=\"text/css\" href=\"include/win_ie.css\" />');return;}
	if(isIE && isMac) {document.write('<link rel=\"stylesheet\" type=\"text/css\" href=\"include/mac_ie.css\" />');return;}
	if(isNS && isWin) {document.write('<link rel=\"stylesheet\" type=\"text/css\" href=\"include/win_ns.css\" />');return;}
	if(isNS && isMac) {document.write('<link rel=\"stylesheet\" type=\"text/css\" href=\"include/mac_ns.css\" />');return;}
	if(!isWin && !isMac) document.write('<link rel=\"stylesheet\" type=\"text/css\" href=\"include/others.css\" />');
}

sniffer();

function popupWindow(url,windowname,parms){
	popupWin = window.open(url,windowname,parms);
	popupWin.focus();
}