Select from Dropdown

jQuery(document).ready(function(){

var $nameLength = document.getElementById(fieldName).value.length;

function decreaseTXT(){


// document.getElementById(fieldName).value.style.fontSize = document.getElementById(fieldName).style.fontSize="6pt";
//document.getElementById('cartText791').value= document.getElementById('cartText791').value="|sizeField|340";
var dropDown=$('cartText791').val();
alert($dropDown[1]);

}


alert($nameLength);

if($nameLength>20){

    var $dropDown;
         $dropDown = $('cartText791');
    alert($nameLength);
      //  decreaseTXT();
    alert($dropDown.val());





 //document.getElementById('cartText729').style.fontSize = document.getElementById('cartText729').style.fontSize="6pt";
 //document.getElementById('cartText729').value = fieldValue.style.fontSize="7pt";
 //jQuery("#targetText").addClass("smallerText");




    }



});