function toggledisplay(e){
    element = document.getElementById(e).style;
    element.display == 'none' ? element.display = 'block' :
    element.display='none';
}

function toggledisplayrow(e){
    element = document.getElementById(e).style;
    element.display == 'none' ? element.display = 'table-row' :
    element.display='none';
}

function firmblock(e){
 document.getElementById('shfr1').style.display = 'block';
 document.getElementById('shfr2').style.display = 'block';
 document.getElementById('shfr3').style.display = 'block';
 document.getElementById('shfr4').style.display = 'block';
 document.getElementById('shfr5').style.display = 'block';
}

function firmnone(e){
 document.getElementById('shfr1').style.display = 'none';
 document.getElementById('shfr2').style.display = 'none';
 document.getElementById('shfr3').style.display = 'none';
 document.getElementById('shfr4').style.display = 'none';
 document.getElementById('shfr5').style.display = 'none';
}