element issue

[Dipak26]

i want to use an div background image in place of i read ur js
and changed tag element with div element and for background-image what i used with tag element
for this

//tag.src = 'images/img' + this.cells[x][y].slot + '.jpg';

//tag.backgroundImage ='images/img' + this.cells[x][y].slot + '.jpg';