function pws_valuecheck(field, regexp, log) {
    var obj = document.getElementById(field);
    var check = unescape(regexp);
    var errmsg = document.getElementsByName(log);
    check = new RegExp(check, 'gi');
    if (obj.value.match(check) || !(obj.value)) {
        for (var i = 0; i < errmsg.length; i++) {
            errmsg[i].parentNode.className = '';
        }
        return true;
    }
    else {
        for (var i = 0; i < errmsg.length; i++) {
            errmsg[i].parentNode.className = 'err show';
        }
        obj.parentNode.parentNode.className = 'err';
        return false;
    }
}
function pws_requiredcheck(field, log) {
    var obj = document.getElementById(field);
    var errmsg = document.getElementsByName(log);
    if (obj.value) {
        for (var i = 0; i < errmsg.length; i++) {
            errmsg[i].parentNode.className = '';
        }
        return true;
    }
    else {
        for (var i = 0; i < errmsg.length; i++) {
            errmsg[i].parentNode.className = 'err show';
        }
        obj.parentNode.parentNode.className = 'err';
        return false;
    }
}
function swapimage(id, state)
 {
    // AUTHOR: Georg M. Freund
    // (c) Copyright 2007 PuzzWorks OHG. All rights reserved.
    // Free for comercial and private use. Keep this Comment.
    /*
 Swaps image from 'name.state.filetype' to 'name.filetype' and back
 Required: swapimage('id_of_image')
 Default settings: Image state (state): over
 */

    // Config
    var state = (state) ? state: "over";
    // Swap image
    var obj = document.getElementById(id).src;
    var img = obj.split(".");
    var filetype = img[img.length - 1];
    var newimg;
    if (img[img.length - 2] == state) {
        img.splice(img.length - 2, 2, filetype);
    }
    else {
        img.splice(img.length - 1, 1, state, filetype);
        newimg = img.join(".");
    }
    newimg = img.join(".");
    // Write image
    document.getElementById(id).src = newimg;
}

function goto(link, target, width, height, args)
 {
    // AUTHOR: Georg M. Freund
    // (c) Copyright 2007 PuzzWorks OHG. All rights reserved.
    // Free for comercial and private use. Keep this Comment.
    /*
 Pop-Up: goto(link_to_page, window_name);
 Default settings: Width: 400px / Height: 300px / Arguments: location=no, menubar=no, resizable=yes, scrollbars=yes, status=no, toolbar=no

 Redirect: goto(link);
 */

    // POP-UP
    if (target) {
        // Default Config
        var width = (width) ? width: 400;
        var height = (height) ? height: 300;
        var args = (args) ? args: 'location=no, menubar=no, resizable=yes, scrollbars=yes, status=no, toolbar=no';

        // Open Window
        args = 'width=' + width + ', height=' + height + ',' + args;
        window.open(link, target, args);
    }
    // Redirect
    else {
        document.location = link;
    }

}

function changesize(id, action, basesize, type, step, maxsize, minsize)
 {
    // AUTHOR: Georg M. Freund
    // (c) Copyright 2007 PuzzWorks OHG. All rights reserved.
    // Free for comercial and private use. Keep this Comment.
    /*
 Changes font-size of elemnt with "id"
 Required: changesize('id', 'action{up;down;reset;reloade}')
 Default settings: Normal font-size of of element (basesize): 12 / Font-size Type (type): pt / Size of up and down steps (step): 1 / Maximal font-size (maxsize): 18 / Minimal font-size (minsize): 8
 */

    // Default Config
    var basesize = (basesize) ? basesize: 12;
    var type = (type) ? type: 'pt';
    var step = (step) ? step: 1;
    var maxsize = (maxsize) ? maxsize: 18;
    var minsize = (minsize) ? minsize: 8;

    // Get Data
    var fontsize = document.getElementById(id).style.fontSize.match(/\d+/) * 1;
    var newsize = basesize;
    var cookie = cookiecontrol(id);
    // Resize
    if (!fontsize) newsize = basesize;
    if (action == 'up') newsize = fontsize + step;
    if (action == 'down') newsize = fontsize - step;
    if (action == 'reset') newsize = basesize;
    if (action == 'reloade' && cookie) newsize = cookie;
    if (newsize < minsize) newsize = minsize;
    if (newsize > maxsize) newsize = maxsize;

    // Wirte Document & Cookie
    cookiecontrol(id, newsize);
    document.getElementById('size').style.width = (newsize - 8) * 10 + '%';
    document.getElementById(id).style.fontSize = newsize + type;
}

function cookiecontrol(name, value)
 {
    // AUTHOR: Georg M. Freund
    // (c) Copyright 2007 PuzzWorks OHG. All rights reserved.
    // Free for comercial and private use. Keep this Comment.
    /*
 Write cookie: cookiecontrol('name','value');
 Read cookie: cookiecontrol('name');
 */
    if (value) {
        document.cookie = name + "=" + value + ";path=/;";
    }
    else {
        var cookie = document.cookie.split("; ");
        for (var i = 0; i < cookie.length; i++) {
            var row = cookie[i].split("=");
            if (row[0] == name) {
		return row[1];
            }
        }
    }
}