function changeCharacterCount(labelId, textBoxId, message_length, messagePrefix, messageSuffix){
    var labelDiv = document.getElementById(labelId);
    var textObj = document.getElementById(textBoxId)
    if (textObj.value.length>=message_length){
        textObj.value=textObj.value.substring(0,message_length);
    }
    
    var left=message_length-textObj.value.length;
    labelDiv.innerHTML=messagePrefix + left + messageSuffix;
}