function validatelength(elementid,labelid,maxlength)
{
    var ret = true;
    var txtctl = document.getElementById(elementid);
    var lblcount = document.getElementById(labelid);
    if (txtctl.value.length > maxlength)
    {
        var content = txtctl.value;
        txtctl.value = content.substr(0,maxlength);
        ret = false;
    }
    if(lblcount != null)
      lblcount.innerHTML = "Remaining allowed characters count: " + (maxlength - txtctl.value.length);
    return ret;
}