function  showimg(){
document.getelementbyid("wximg").style.display='block';
}
function hideimg(){
document.getelementbyid("wximg").style.display='none';
}

function  showimg1(){
document.getelementbyid("wximg1").style.display='block';
}
function hideimg1(){
document.getelementbyid("wximg1").style.display='none';
}