var browser_agent = navigator.userAgent.toLowerCase();


if ((browser_agent.indexOf("firefox") != -1) || (browser_agent.indexOf("netscape") != -1) || (browser_agent.indexOf("netscape") != -1)) {

	document.write ("<link rel='stylesheet' href='css/mozilla.css' media='screen'>");
	//document.write("Sie benutzen: mozilla");
}

else if (browser_agent.indexOf("opera") != -1) {
     document.write ("<link rel='stylesheet' href='css/opera.css' media='screen'>");
     //document.write("Sie benutzen: opera");
}

else if ((browser_agent.indexOf("safari") != -1) || (browser_agent.indexOf("konqueror") != -1)) {
     document.write ("<link rel='stylesheet' href='css/safari.css' media='screen'>");
     //document.write("Sie benutzen: safari od konqueror");
}

else {
	 document.write ("<link rel='stylesheet' href='css/explorer.css' media='screen'>");
	 //document.write("Sie benutzen: explorer");
}