$(document).ready(function(){
$('body').delegate('#DropDown_Year','change',function(){
var prev = $(this).find('option:selected').prev().val();
if($(this).val() == prev ){
alert('Matched');
//your curent value and previous value are the same
}else{
//not same
}
});
});
3
solved How to check the option value in drop down with previous value? [closed]