function onBridgeReady(){
 
 WeixinJSBridge.call("hideOptionMenu");

 }

 if (typeof WeixinJSBridge == "undefined"){

 if( document.addEventListener ){

 document.addEventListener("WeixinJSBridgeReady", onBridgeReady, false);

 }else if (document.attachEvent){

 document.attachEvent("WeixinJSBridgeReady", onBridgeReady);

 document.attachEvent("onWeixinJSBridgeReady", onBridgeReady);

 }

 }else{

 onBridgeReady();

 }