var screen_W = screen.width;
//if(screen_W <= 640){
 // document.write("<link rel='StyleSheet' href='http://www.laurelleaffarm.com/assets/css/640x480.css' type='text/css'>");
  //}
  if((screen_W > 640)&&(screen_W <= 800)){
   document.write("<link rel='StyleSheet' href='http://www.laurelleaffarm.com/assets/css/800x600.css' type='text/css'>");
   }
   if(screen_W > 800){
    document.write("<link rel='StyleSheet' href='http://www.laurelleaffarm.com/assets/css/1024x768.css' type='text/css'>");
    }