if (navigator.appVersion.substring(0,1)>=4){
if(navigator.appName=="Netscape"){if(screen.width<=1280 & screen.width>=1153){
sw1x=1280;
sw1h=1024;}
else{if(screen.width<=1152 & screen.width>=1025){
sw1x=1152;
sw1h=864;}
else{if(screen.width<=1024 & screen.width>=833){
sw1x=1024;
sw1h=768;}
else{if(screen.width<=832 & screen.width>=801){
sw1x=832;
sw1h=624;}
else{if(screen.width<=800 & screen.width>=641){
sw1x=800;
sw1h=600;}
else{if(screen.width<=640){sw1x=640;
sw1h=480;}}}}}}}}