Global: Improve getMaxScrollForTransition definition and usage docs

Fixes gh-274

Author: Gabriel Schulhof

pages/global-config.html

@@ -131,8 +131,8 @@ <h2>Configurable options</h2>
 	<dt id="focusClass"><code>focusClass</code> <em>string</em>, default: "ui-focus"</dt>
 	<dd>The CSS class used for "active" button state.<div class="warning"><strong>Deprecated</strong> in 1.4 and will be removed in 1.5. The class "ui-focus" will continue to be applied to elements as before.</div></dd>
 	<br />
-	<dt id="getMaxScrollForTransition"><code>getMaxScrollForTransition</code> <em>integer</em>, default: 3</dt>
-	<dd>Set a scroll position breakpoint for transitions. If the scroll position is greater than the window height multiplied by the value that has been set, transition "none" will be used.</dd>
+	<dt id="getMaxScrollForTransition"><code>getMaxScrollForTransition</code> <em>function</em></dt>
+	<dd>Set a scroll position breakpoint for transitions. If the scroll position is greater than the value returned by this function, transition "none" will be used. The default function returns three times the window height.</dd>
     <br />
 	<dt id="gradeA"><code>gradeA</code> <em>function that returns a boolean</em>, default: a function returning the value of $.support.mediaquery</dt>
 	<dd>Any support conditions that must be met in order to proceed.</dd>