There's something wrong with your PHP search app (phpsqlsearch_genxml.php), because it's returning an empty XML document. So in your callback function the bounds object is initialized but never set with any other values, so it's defaulting to the Pacific Ocean. For example, a search for "texas" generates this searchUrl: http://www.rentalmatch101.com.php5-20.dfw1-1.websitetestlink.com/phpsqlsearch_genxml.php?lat=31.9685988&lng=-99.90181310000003&radius=25 which returns no data, so markerNodes is an empty array.
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