var br_longname = navigator.appVersion;
//var br_name = br_longname.substring(17,25); // = 'MSIE 5.5' for Spica-Win98
var isMSIE = br_longname.indexOf("MSIE");	// 0 wird als false gewertet

var frame_y = 196;     // MSIE
if (br_name.indexOf("MSIE") < 0) frame_y = 188;