Update index.html

Author: yezhizhen

index.html

@@ -4058,11 +4058,11 @@ <h4><dfn>Set Window Rect</dfn></h4>
  <li><p>If <var>y</var> is <a>undefined</a>, let <var>y</var> be null.
 
  <li><p>If <var>width</var> or <var>height</var> is neither null, nor
-  a <a>Number</a> from 0 to 2<sup>31</sup> − 1, return <a>error</a>
+  an integer from 0 to 2<sup>31</sup> − 1, return <a>error</a>
   with <a>error code</a> <a>invalid argument</a>.
 
  <li><p>If <var>x</var> or <var>y</var> is neither null, nor
-  a <a>Number</a> from −(2<sup>31</sup>) to 2<sup>31</sup> − 1,
+  an integer from −(2<sup>31</sup>) to 2<sup>31</sup> − 1,
   return <a>error</a> with <a>error code</a> <a>invalid argument</a>.
 
  <li><p>If the <a>remote end</a> does not support