//淘口令
// function cancelYzm(){
// 	var mask = document.getElementsByClassName('mask')[0];
// 	mask.style.visibility='hidden';
// }
// function courseTkl(){
// 	cancelYzm();
// 	var mask_two = document.getElementsByClassName('mask_two')[0];
// 	mask_two.style.visibility='visible';	
// }
function back(){
	var mask_two = document.getElementsByClassName('mask_two')[0];
	mask_two.style.visibility='hidden';	
	var mask = document.getElementsByClassName('mask')[0];
    mask.style.visibility='visible';
}
function closeCourse(){
	var mask_two = document.getElementsByClassName('mask_two')[0];
	mask_two.style.visibility='hidden';	
}

function makeMoneyCourse(){
	var mask = document.getElementsByClassName('mask')[1];
    mask.style.visibility='hidden';
	var mask_two = document.getElementsByClassName('mask_two')[1];
	mask_two.style.visibility='visible';
}
function makeMoneyback(){
	var mask_two = document.getElementsByClassName('mask_two')[1];
	mask_two.style.visibility='hidden';	
	var mask = document.getElementsByClassName('mask')[1];
    mask.style.visibility='visible';
}
function closeMakeMoneyCourse(){
	var mask_two = document.getElementsByClassName('mask_two')[1];
	mask_two.style.visibility='hidden';	
}
function closeMakeMoney(){
	var mask = document.getElementsByClassName('mask')[1];
	mask.style.visibility='hidden';
}
function shutT(){
	var mask = document.getElementsByClassName('mask')[0];
	mask.style.visibility='hidden';
}
function shut(){
	var mask = document.getElementsByClassName('mask')[1];
	mask.style.visibility='hidden';
}