This should work (from a few alterations to your code above).
function tableCreate() {_x000D_
var body = document.getElementsByTagName('body')[0];_x000D_
var tbl = document.createElement('table');_x000D_
tbl.style.width = '100%';_x000D_
tbl.setAttribute('border', '1');_x000D_
var tbdy = document.createElement('tbody');_x000D_
for (var i = 0; i < 3; i++) {_x000D_
var tr = document.createElement('tr');_x000D_
for (var j = 0; j < 2; j++) {_x000D_
if (i == 2 && j == 1) {_x000D_
break_x000D_
} else {_x000D_
var td = document.createElement('td');_x000D_
td.appendChild(document.createTextNode('\u0020'))_x000D_
i == 1 && j == 1 ? td.setAttribute('rowSpan', '2') : null;_x000D_
tr.appendChild(td)_x000D_
}_x000D_
}_x000D_
tbdy.appendChild(tr);_x000D_
}_x000D_
tbl.appendChild(tbdy);_x000D_
body.appendChild(tbl)_x000D_
}_x000D_
tableCreate();
_x000D_