function openb(){
    var modal = document.getElementById("modal");

    if(modal.style.display === 'none'){
        modal.style.display = 'flex';

    }
    else{
        modal.style.display = 'none'; 
       
    }
};
function closeb(){
    var modal = document.getElementById("modal");

    if(modal.style.display === 'flex'){
        modal.style.display = 'none';

    }
    
};


function openbb(){
    var modal1 = document.getElementById("modal1");

    if(modal1.style.display === 'none'){
        modal1.style.display = 'flex';

    }
    else{
        modal1.style.display = 'none'; 
       
    }
};

function closebb(){
    var modal1 = document.getElementById("modal1");

    if(modal1.style.display === 'flex'){
        modal1.style.display = 'none';

    }

};


function openbbb(){
    var modal1 = document.getElementById("modal3");

    if(modal1.style.display === 'none'){
        modal1.style.display = 'flex';

    }
    else{
        modal1.style.display = 'none'; 
       
    }
};

function closebbb(){
    var modal1 = document.getElementById("modal3");

    if(modal1.style.display === 'flex'){
        modal1.style.display = 'none';

    }

};