function openChat(mid,oid,encryptMsg,msgType) {
	if(mid<=0 || oid<0) {
		return;
	}
	if(mid==oid) {
		alert("您不能跟自己聊天");
		return;
	}
	var w = 880;
	var h = 600;
	var s = 0;
	var target = "chat_"+mid;
	var url = 'javascript:try{newChat('+oid+',true'+',"'+encryptMsg+'","'+msgType+'");}catch(e){location.href="http://album.zhenai.com/im/chat.jsps?objectid='+oid+'&encryptMsg='+encryptMsg+'&msgType='+msgType+'";};';
	
	var left=(screen.width-w)/2;
	var top=(screen.height-h)/2;
	
	try	{
		var r = window.open(url,target,'width='+w+',height='+h+',top='+top+',left='+left+',scrollbars=0,resizable=0,status='+s);
		r.focus();
		return r;
	}catch(e){	}
}