function setCookie(c_name, value, expdays) {
    var expdate = new Date();
    expdate.setDate(expdate.getDate() + expdays);
    var c_value = escape(value) + ((expdays == null) ? "" : "; expires=" + expdate.toUTCString());
    document.cookie = c_name + "=" + c_value;
}
function getCookie(c_name, defaultvalue) {
    var i, x, y, cookies = document.cookie.split(";");
    for (i = 0; i < cookies.length; i++) {
        x = cookies[i].substr(0, cookies[i].indexOf("="));
        y = cookies[i].substr(cookies[i].indexOf("=") + 1);
        x = x.replace(/^\s+|\s+$/g, "");
        if (x == c_name) {
            return unescape(y);
        }
    }
    return defaultvalue;
}
// This functions adds option to drop down list
function addOption(elemid, text, value, selected) {
    var elem = document.getElementById(elemid);
    var newopt = document.createElement('option');
    newopt.text = text;
    newopt.value = value;
    newopt.selected = !(!selected);
    elem.add(newopt);
}

var tips = [], currenttip = 0, turnoff = false, piresourcebase='';
// Callback function which gets called when user presses F9 key.
function scriptChangeCallback(lang, kb, context) {
    // Change the dropdown to new selected language.
    document.getElementById('cmdhelp').className = (lang == 'english' ? 'disabled' : '');

    var icon = pramukhIME.getIcon(4);
    // PramukhIME toolbar settings
    document.getElementById('cmdhelp').style.background = "transparent url('"+piresourcebase+"img/" + icon.iconFile + "') " + (lang == 'english' ? 100 : -1 * icon.x) + "px " + (lang == 'english' ? 100 : -1 * icon.y) + "px no-repeat";

    var i, dd = document.getElementById('drpLanguage');
    for (i = 0; i < dd.options.length; i++) {
        if (dd.options[i].value == kb + ':' + lang) {
            dd.options[i].selected = true;
        }
    }
    // Change the image
    document.getElementById('pramukhimecharmap').src = piresourcebase + 'img/' + pramukhIME.getHelpImage();
    var filename = pramukhIME.getHelp();
    if (filename != '') {
        document.getElementById('pramukhimehelpdetailed').src = piresourcebase + 'help/' + filename;
    }
    setCookie('pramukhime_language', kb + ':' + lang, 10);

}
// Changing the language by selecting from dropdown list
function changeLanguage(newLanguage) {
    if (!newLanguage || newLanguage == "")
        newLanguage = 'english';
    // set new script
    var lang = newLanguage.split(':');
    pramukhIME.setLanguage(lang[1], lang[0]);
}
function showHelp(elem) {
	alert("In showHelp");
    if (elem.className && elem.className == 'disabled') {
        return false;
    }
    showDialog('Pramukh Type Pad Help');
    alert("out showDialog");
    document.getElementById('pramukhimehelp').style.display = 'block';
    selectHelpType();
    alert("out selectHelpType");
    return false;
}
function closeDialog() {
    document.getElementById('blocker').style.display = 'none';
    document.getElementById('dialog').style.display = 'none';
    document.getElementById('typingarea').focus();
    return false;
}
function showDialog(title) {
	alert("In showDialog");
    document.getElementById('blocker').style.display = 'block';
    document.getElementById('dialog').style.display = 'block';
    document.getElementById('dialogheader').innerHTML = title;
    document.getElementById('pramukhimehelp').style.display = 'none';
}
function selectHelpType() {
	alert("In selectHelpType");
    var rdolist = document.getElementsByName('helptype');
    if (rdolist[1].checked) {
        document.getElementById('pramukhimehelpquick').style.display = 'none';
        //document.getElementById('pramukhimehelpdetailed').style.display = 'block';
    } else {
        document.getElementById('pramukhimehelpquick').style.display = 'block';
        //document.getElementById('pramukhimehelpdetailed').style.display = 'none';
    }
}
function showNextTip() {
    currenttip++;
    if (currenttip > tips.length) {
        currenttip = 1; // reset tip
    }
    var tipelem = document.getElementById('pi_tips'), li;
    // get first child node
    var elem, len = ul.childNodes.length, i;
    for (i = 0; i < len; i++) {
        elem = ul.childNodes[i];
        if (elem.tagName && elem.tagName.toLowerCase() == 'li') {
            li = elem;
            break;
        }
    }
    if (!turnoff && li) {
        li.innerHTML = ''; // clear
        li.appendChild(document.createTextNode('Tip ' + currenttip + ': ' + tips[currenttip - 1] + ' '));
        elem = document.createElement('a');
        elem.href = 'javascript:;';
        elem.innerHTML = 'Turn Off';
        elem.className = 'tip';
        elem.onclick = turnOffTip;
        li.appendChild(elem);
        setTimeout('showNextTip()', 10000);
    } else if (li) {
        tipelem.removeChild(li);
    }

}
function turnOffTip() {
    turnoff = true;
    showNextTip();
}