What attribute makes an option from <select> selected?

checked="checked" selected="selected" disabled="disabled"

<select name="a_name">
 <option value="val1">Option 1</option>
 <option value="val2" selected="selected">Option 2</option>
</select>

What CSS value allows to create color gradients for background?

contain repeat-x linear-gradient

#id {
  background: linear-gradient(top left, #1f1, #fff, #11f);
}

What statement creates an array in JavaScript?

[] {} new Object()

var arr = [1, "CoursesWeb.net", "MarPlo.net"];
alert(arr[2]);

Indicate the PHP function used to redirect to other page.

function() header() switch()

header("Location: http://coursesweb.net/");
exit;

Ajax Course