function EnvSetTst(){
 var pf=navigator.platform;
 var lng=navigator.language;
 var swh=screen.width+"x"+screen.height;
 var cd=screen.colorDepth;
 var pd=screen.pixelDepth;
 var rf=document.referrer;
 if (rf.length == 0 ){ rf = 'BookMrak_?'};
 da= rf + "," + swh ;
return(da);
}

function EnvSet(){
 var pf=navigator.platform;
 var lng=navigator.language;
 var swh=screen.width+"x"+screen.height;
 var cd=screen.colorDepth;
 var pd=screen.pixelDepth;
 var rf=document.referrer;
 if (rf.length == 0 ){ rf = 'BookMrak_?'};
 da= rf + "," + swh ;
return(da);
}