function vis(tanela_id) {
document.getElementById("tabela").innerHTML = document.getElementById("myTabela"+tanela_id).innerHTML;
}


function visImg(imageDIV, img_id) {
document.getElementById(imageDIV).innerHTML = document.getElementById("myImg"+img_id).innerHTML;
}


function alertMe() {
window.alert('ALERT!')
}

var showMode = 'table-cell';
if (document.all) showMode='block';

function toggleVis(btn){
	btn   = document.forms['tcol'].elements[btn];
	cells = document.getElementsByName('t'+btn.name);
	mode = btn.checked ? showMode : 'none';
	for(j = 0; j < cells.length; j++) cells[j].style.display = mode;
}