function displaycatagories(){
        var row = document.getElementById("catagories");
        if (row.style.display == '') row.style.display = 'none';
        else row.style.display = '';
     }

function displayproof(){
        var row = document.getElementById("proof");
        if (row.style.display == '') row.style.display = 'none';
        else row.style.display = '';
     }

function displaypromise(){
        var row = document.getElementById("promise");
        if (row.style.display == '') row.style.display = 'none';
        else row.style.display = '';
     }

function displayinnovapor(){
        var row = document.getElementById("innovapor");
        if (row.style.display == '') row.style.display = 'none';
        else row.style.display = '';
     }


function displayhelpful(){
        var row = document.getElementById("helpful");
        if (row.style.display == '') row.style.display = 'none';
        else row.style.display = '';
     }


function showmenu(elmnt) 
{ 
 document.getElementById(elmnt).style.visibility="visible"; 
}

function hidemenu(elmnt) 
{ 
 document.getElementById(elmnt).style.visibility="hidden";
}