JS Implementation of simple speed Testing Method

<!  Doctype HTML public "-// W3C // dtd html 4.01 transitional // en" "http://www.w3.org/TR/html4/loose.dtd"  >  <  Html  >   <  Head  >    <  Title  > New Document </  Title  >   <  Meta  HTTP-equiv  = "Content-Type"  Content  = "Text/html; charset = GBK"  />    <  Meta  Name  = "Generator"  Content  = "Editplus"  >    <  Meta Name  = "Author"  Content  = "Xinmingyang"  >    <  Meta  Name  = "Keywords"  Content  = ""  >    <  Meta  Name  = "Description"  Content = ""  >   </  Head  >   <  Body  >    <  Script  Language  = Javascript  >       VaR  St  =  New  Date ();  </  Script  >  <  IMG  ALT  = "Test image"  SRC  = "Http://sp2.yokacdn.com/photos/f3/4f/702018/photo_322092_500.jpg"  Onload  = "Showspeed ();"  >  < Div  ID  = 'Showtxt'  > </  Div  >  <  Script  >      VaR  Arr  =  [  "  Network speed less than 50kb "  ,  "  The network speed is between 50-kb.  "  ,  "  The network speed is between kb and kb.  "  ,  "  The network speed is between-kb. "  ,  "  Video Communication  "  ];  Function  Showspeed (){  VaR  Filesize  = 35.4  ;  //  Measured in KB          VaR  Et  =   New  Date ();  VaR  Speed =  Math. Round (filesize  *  1000  )  /  (ET-St );  Document. Title  =  Speed;  VaR Scope  =  (Speed  >  0   &&  Speed  <=  50  )  ?  0 :( Speed  >  50   &&  Speed  <=  100  )  ?  1  :( Speed  > = 100   &&  Speed  <  200  )  ?  2  :( Speed  > =  200   && Speed  <  300  )  ?  3  :  4  ; Alert (scope) document. getelementbyid (  "  Showtxt "  ). Innerhtml  =  (  "  Your download speed is:  "   +  Arr [Scope]  +   "  (K/sec) "  )}  </  Script  >   </  Body  >  </  Html  >