$(document).ready(function() {
    
    $('#fieldformBuilderFieldEssay').change(displayWords);
    $('#fieldformBuilderFieldEssay').keydown(function (e){
        var unicode=e.keyCode? e.keyCode : e.charCode
        if (unicode == 32 ||unicode == 8) displayWords();});
    displayWords() 

});

function displayWords() {
    
    var numberOfWords = jQuery.trim($('#fieldformBuilderFieldEssay').val());
    numberOfWords=numberOfWords.replace(/\s+/g, " ");
    var count = numberOfWords.split(" ").length
    if (numberOfWords == "")
        $('#wordCount').html(0);
    else
    $('#wordCount').html(count);
    if (count >= 250 && count <= 1000) {
        $('.formBuilderHiddenField input').val(count);
    }
    else
        $('.formBuilderHiddenField input').val("");
    
}