function bbCode(str){
	var textarea = document.getElementById('bbcode');
	var currentscroll = textarea.scrollTop;

	if(str == 'url'){
		var tag_open = '[url='+ prompt("Voer de URL in:", "http://") +']';
		var tag_close = '[/url]';
	}else{
		var tag_open = '['+ str +']';
		var tag_close = '[/'+ str +']';
	}
	
	if(!textarea.setSelectionRange)
    {
        var selected = document.selection.createRange().text;
        if(selected.length <= 0)
        { 
            textarea.value += tag_open + tag_close;
        }
        else
        {
			document.selection.createRange().text = tag_open + selected + tag_close;
        }
    }else{
        var pretext = textarea.value.substring(0, textarea.selectionStart);
        var codetext = tag_open + textarea.value.substring(textarea.selectionStart, textarea.selectionEnd) + tag_close;
        var posttext = textarea.value.substring(textarea.selectionEnd, textarea.value.length)
        
        if(codetext == tag_open + tag_close)
        {
            codetext = tag_open + tag_close;
        }
        textarea.value = pretext + codetext + posttext;
    }
	textarea.scrollTop = currentscroll;
    textarea.focus();
}

function selectPollOption(poll_id, awnser_id)
{
	var pollAwnser = document.getElementById('poll_' + poll_id);
	
	if(!pollAwnser)
	{
		return false;
	}
	
	if(pollAwnser.value != '')
	{
		document.getElementById('poll_awnser_' + pollAwnser.value).className = '';
	}
	
	pollAwnser.value 											  = awnser_id;
	document.getElementById('poll_awnser_' + awnser_id).className = 'selected';
}