Merge pull request yql#140 from houyhnhnm/master

The orderby non existence issue has been corrected, thanks twobit for sharing

HIA/HIA.search.xml

@@ -3,7 +3,7 @@
   <meta>
     <author>Houyhnhnm</author>
     <description>Search differenct sources of The Internet Archive, and returns the entries for the first page or a page described. Developer's note: it does not check for the number of pages from a query and use that to make a true control on the page input, restricting it to the number of pages the Internet Archive responds to with a page. Also a connect failure issue arises from the search if the page is too far, and it comes up as an error</description>
-    <documentationURL></documentationURL>
+    <documentationURL>http://www.associatedcontent.com/article/9000477/github_hiasearch.html?cat=15</documentationURL>
     <sampleQuery>select * from {table} where query="yahoo" and zone="4"</sampleQuery>
     <sampleQuery>select * from {table} where query="yahoo" and zone="4" and page="2"</sampleQuery>
   </meta>

youtube/youtube.search.xml

@@ -21,10 +21,17 @@
         <key private="true" id="v" type="xs:integer" default="2" paramType="query" />
       </inputs>
       <execute><![CDATA[
-        if(order_by.length<=0)
-        {
-                order_by="relevance";
-        }
+	if(order_by)
+	{
+	        if(order_by.length<=0)
+        	{
+	                order_by="relevance";
+	        }
+	}
+	else
+	{
+		order_by="relevance";
+	}
         var atom = Namespace("http://www.w3.org/2005/Atom");
         var media = Namespace("http://search.yahoo.com/mrss/");
         var gd = Namespace("http://schemas.google.com/g/2005");