Sum of numbers from 1 to 10

        
<!doctype html>
<html>
   <head>
       <title>Sum of numbers from 1 to 10</TITLE>
   </HEAD>
   <body>
<h1>Sum of numbers from 1 to 10  </h1>
       <form name="f1">
           <input type="submit" value="Sum of numbers from 1 to 10" onClick="display()">
       </form>
    </body>
    <script language="Javascript">
          function display()
          {
              var i,sum=0;
              document.writeln("Sum of numbers from 1 to 10 are as follows:<br>");
              for(i=1;i<=10;i++)
              {
                sum=sum+i;
              }
              document.write("Sum of 1 to 10 numbers="+sum);
          }
     </script>
</html>
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