JS cutStrMid Function for string manpulation example

<script>

var p =cutStrMid("enter string here!!!!!",null,null,2,5);//Returns "en".

document.writeln(p);//prints out the extracted string from the above line.

function cutStrMid(s,len,left,right){

var s1="";

var s2="";

s1=s.substring(s,right);

s2-s.substring(s.length-right,s.length);

return(s1+ ""+s2);

}

</script>