[Deff]

var strTabl="<table border=1><tbody>\n";
	for (k = 0; k < 4; k++) {
	    strTabl+= "\n<tr>\n";
	    for (m = 0; m < 5; m++) {
	         strTabl+= "<td>"+"строка " +k+"; яч "+m+"</td>";
	    }  strTabl+=  "\n</tr>\n";
	}
	    strTabl+= "\n</tbody></table>";
alert(strTabl);