js生成一个表格
var table = function(){
var tr,td;
var arr = new Array();
tr = document.getElementByIdx_x('tr').value;
td = document.getElementByIdx_x('td').value;
arr.push('');
for (var i=1;i<=tr;i++){
arr.push('');
for(var j=1;j<=td;j++){
arr.push('');
}
arr.push('
');
}
arr.push('
');
document.getElementByIdx_x('tableTest').innerHTML = arr.join('');
}