msn chat function in javascript Discuz code_javascript skills

Add the following 2 functions in javascript

function msnoperate(action, msn) {
var actionArray = new Array();
actionArray = {
'add' : 'http:// go.discuz.com/?app=msn&linkid=5&msn=' msn,
'chat' : 'http://go.discuz.com/?app=msn&linkid=6&msn=' msn
}

if(messengerInstalled()) {
window.open(actionArray[action]);
} else {
window.open('http://go.discuz.com/msn/msn .html','_blank','width=571, height=498');
}
}

function messengerInstalled() {
try {
new ActiveXObject(" MSNMessenger.P4QuickLaunch");
return true;
}
catch (e) {
return false;
}
}
Add the following content to the html code:
——————————————
Click the icon to chat with me!