做一个乘法表，就像九九乘法表那样的，可是不要九，而是输入几，就生成一个几几的乘法表。急，高手请指教！
做了半天也没有个头绪，请大家帮帮忙。
才学了一周javascrpit，老师就让做这个
[解决办法]
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><title> JavaScript 9*9 </title><meta name="Generator" content="EditPlus"><meta name="Author" content=""><meta name="Keywords" content=""><meta name="Description" content=""></head><style>td { font-size: 12px;}</style><body leftmargin="0" topmargin="0"> <br /> <br /> <input type="text" id="id_txt" maxlength="2" style="width: 80px" onblur="doCal(this)"> input a number <br /> <br /> <table id="id_tbl" border="1" cellpadding="0" cellspacing="0"> </table></body></html><script language="JavaScript"><!-- function doCal(obj) { var num = obj.value; var tbl = document.getElementById("id_tbl"); if (document.body.all) { tbl.innerText = ""; } else { tbl.innerHTML = ""; } if (isNaN(num) || num.trim() == "") { return; } for (var i = 1; i <= num; i++) { var newRow = tbl.insertRow(tbl.rows.length); for (var j = 1; j <= i; j++) { var newCell = document.createElement("td"); newCell.innerHTML = i + "*" + j + " = " + i * j; newRow.appendChild(newCell); } for (j; j <= num; j++) { var newCell = document.createElement("td"); newCell.innerHTML = " "; newRow.appendChild(newCell); } } } String.prototype.trim = function() { return this.replace(/(^\s*)|(\s*$)/g, ""); };//--></script>