function showOrHide(div){
    myDiv = document.getElementById(div);
    if(myDiv.style.display=='block'){
        myDiv.style.display='none';
    }else
    {
        myDiv.style.display='block';
    }
}

//this,lblNoticeBoardNoticeMessage,256

function calcCharsLefts(tbMessage, maxLength)
{
    
    var charsLeft = maxLength - tbMessage.value.length;
   
    if (charsLeft < 0)
    {
        tbMessage.value = tbMessage.value.substring(0, maxLength);
        charsLeft = 0;
        alert('Din text får endast innehålla ' + maxLength + ' tecken!');
    }

    document.getElementById(lblCharsLeft).value = charsLeft;
    
}