How to create a new table row after every 4 cells within a forloop in JavaScript?

Not sure how to use the modulus operator to achieve this:

<table border="1">
<tr>

for (i = 0; i < someVar.length; i++) {

   if (i % 4) document.write('</tr><tr>');

   document开发者_JS百科.write('<td>Hi</td>'+i):

}

</tr>
</table>

<table border="1">
<tr>

for (i = 0; i < someVar.length; i++) {

   document.write('<td>Hi</td>'+i);

   if (i % 4 == 3) document.write('</tr><tr>');

}

</tr>
</table>

if(i%4==3) document.write('</tr><tr>');

and after the for loop, there should be something what adds empty cells to the last row, i.e.

while(i++%4!=0) document.write('<td>&nbsp;</td>');

<table id="tabid" border="1" >
<script  language="javascript1.1" type="text/javascript" >

for (i = 0; i < 12; i++) {

   if (i % 4==0) document.write('</tr><tr>');

   document.write('<td>Hi'+i+'</td>');

}
</script>
</table>

Works fine for me

for (var i = 0; i < 10; i++) {
    document.write("<td>Example</td>");
    if (i % 4 == 3) {
        document.write("</tr><tr>");
    }
}

See example here: http://jsfiddle.net/UeThn/28/