Get Value, Index, Text on HTML Select Tag [Javascript]

  Code:

    function getSelectedIndex(id,id2){
     var indx = document.getElementById(id).selectedIndex;
     var op = document.getElementById(id2);
     op.value ="Index is: " + indx;
    }
    function getSelectedValue(id,id2){
     var val = document.getElementById(id).value;
     var op = document.getElementById(id2);
     op.value = "Value is: " + val;
    }
    function getSelectedTxt(id,id2){
     var indx = document.getElementById(id).selectedIndex;
     var txt = document.getElementById(id).options[indx].text;
     var op = document.getElementById(id2);
     op.value = "Text is: " + txt;
    }



EXAMPLE
  Structure:

INDEX	VALUE	TEXT
0	String value 1	Text 1
1	String value 2	Text 2
2	String value 3	Text 3
3	String value 4	Text 4
4	String value 5	Text 5

    Input Select Here:
      Text 1 Text 2 Text 3 Text 4 Text 5
    Output:
     

            

trim(), ltrim(), rtrim() [Javascript Implementation]

 rtrim, ltrim, trim are string manipulation functions
 which strip or remove whitespaces from the beginning, ending,
 or both beginning and ending of a string. 

  Code:

   function trim(id){
    var txt = document.getElementById(id);
    var str = txt.value.replace(/^\s+/, '').replace(/\s+$/, '');
    return str;
   }

   function ltrim(id){
    var txt = document.getElementById(id);
    var str = txt.value.replace(/^\s+/, '');
    return str;
   }

   function rtrim(id){
    var txt = document.getElementById(id);
    var str = txt.value.replace(/\s+$/, '');
    return str;
   }



See sample output below:
Input Text Here:

Output: