//Variables for controlling opening and closing tags (function tag)

var b = 2;
var i = 2;
var u = 2;
var q = 2;
var c = 2;
var url = 2;
var img = 2;

//Function for creating non-font tags

function tag(v, tagadd, newbut, tagclose, oldbut, name) {
    if (eval(v)%2 == 0) {
        eval("window.document.editform."+name+".value = newbut;");
        var post = window.document.getElementById('PostContent').value;
        window.document.getElementById('PostContent').value = post + tagadd;
        window.document.getElementById('PostContent').focus();
    } else {
        eval("window.document.editform."+name+".value = oldbut;");
        var post = window.document.getElementById('PostContent').value;
        window.document.getElementById('PostContent').value = post + tagclose;
        window.document.getElementById('PostContent').focus();
    }
    eval(v+"++;");
}


function font(bbopen, bbclose) {
        var post = document.getElementById('PostContent');
        post.value += bbopen + bbclose;
        post.focus();
        return;
}

//Function for adding smilies

function smilie (smilie) {
        var post = document.getElementById('PostContent');
        post.value += smilie;
        post.focus();
        return;
}


//Helpbox messages
bold_help = "Bold text: [b]text[/b]";
italic_help = "Italic text: [i]text[/i]";
underline_help = "Underline text: [u]text[/u]";
quote_help = "Quote text: [quote]text[/quote] or [quote=name]text[/quote]";
code_help = "Code display: [code]code[/code]";
img_help = "Insert image: [img]http://image_url[/img]";
url_help = "Insert URL: [url]http://url[/url] or [url=http://url]URL text[/url]";
fontcolor_help = "Font color: [color=red]text[/color]  Tip: you can also use color=#FF0000";
fontsize_help = "Font size: [size=50%]small text[/size]";

//Function for displaying help information

// Shows the help messages in the helpline window
function helpline(help) {
        var helpbox = document.editform.helpbox;
        helpbox.value = eval(help + "_help");
}


//Function to confirm reset

function confirm_reset () {
        if(confirm("If you continue you will loose everything you have entered so far. \n \n" +
                "Click OK to proceed and start again.  \n \n Alternatively click cancel to continue " +
                "working on your post.")) {
                        return true;
                                }
                else {
                        return false;
                                }
}


//Check the form submission for errors

function checkForm() {
        var subject = document.editform.subject;
        var post = document.getElementById('PostContent');

        //Check to make sure post lengths are sensible

        if (subject.value.length < 2 && post.value.length < 2) {
                alert("This is a short post!" + " \n \n " +
                                "We require that each post (and subject) \n" +
                                "be at least 2 characters long. \n \n" +
                                "Go back and try again.");
                return false;
        }
        else { if (subject.value.length < 2) {
                        alert("We require that the subject  \n" +
                                "be at least 2 characters long. \n \n" +
                                "Go back and try again.");
                                return false;
                                }
                        else { if (post.value.length < 2) {
                        alert("We require that each post  \n" +
                                "be at least 2 characters long. \n \n" +
                                "Go back and try again.");
                                return false;
                                }
                                else {
                                        return true;
                                }
                        }
        }
}