// JavaScript Document
var tt='start';
var ii='start';
function turnit(ss,bb) {

  if (ss.style.display=="none") {
    if(tt!='start') tt.style.display="none";
    if(ii!='start') ii.src="";
    ss.style.display="";
    tt=ss;
    ii=bb;
    bb.src="";
  }
  else {
    ss.style.display="none"; 
    bb.src="";
  }
}
//msn
function msnoperate(action, msn) {
	var actionArray = new Array();
	actionArray = {
		'reghotmail' : 'http://go.discuz.com/?app=msn&linkid=1',
		'reglivemail' : 'http://go.discuz.com/?app=msn&linkid=2',
		'regliveid' : 'http://go.discuz.com/?app=msn&linkid=3',
		'download' : 'http://go.discuz.com/?app=msn&linkid=4',
		'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;
      }
}