if (self.screen) {     // for NN4 and IE4

width = screen.width

height = screen.height

}

else if (self.java) {   // for NN3 with enabled Java       

var jkit = java.awt.Toolkit.getDefaultToolkit();       

var scrsize = jkit.getScreenSize();              

width = scrsize.width;        

height = scrsize.height; 

}else{

       width = height = 'x' // for all other browsers

}

if (width == 800) {
   document.writeln('<link href="css/800.css"  rel="stylesheet" type="text/css">') }
else if (width == 1024) {

   document.writeln('<link href="css/style.css" rel="stylesheet" type="text/css">') }
else if (width == 1280) {

   document.writeln('<link href="css/1280.css"  rel="stylesheet" type="text/css">') }
   
else {   

document.writeln('<link href="css/style.css"  rel="stylesheet" type="text/css">') }