Patch for data type schemas which doesn't have targetNamespace attribute

gistfile1.diff

===================================================================
--- nusoap.php	(revision )
+++ nusoap.php	(revision )
@@ -805,7 +805,7 @@
     * @access public
     */
 	function getPrefix($str){
-		if($pos = strrpos($str,':')){
+		if(($pos = strrpos($str,':'))!==false){
 			// get prefix
 			return substr($str,0,$pos);
 		}
@@ -1454,7 +1454,7 @@
 					$ename = $this->getLocalPart($attrs['ref']);
 					$ns = $this->getPrefix($attrs['ref']);
 					if (! $ns) {
-						$ns = $this->schemaTargetNamespace;
+						$ns = '';
 						$this->xdebug("defaulted ref namespace to $ns");
 					}
 					$attrs['ref'] = $ns . ':' . $ename;
@@ -5429,7 +5429,7 @@
     */
 	function getTypeDef($type, $ns) {
 		$this->debug("in getTypeDef: type=$type, ns=$ns");
-		if ((! $ns) && isset($this->namespaces['tns'])) {
+		if ($ns===false && isset($this->namespaces['tns'])) {
 			$ns = $this->namespaces['tns'];
 			$this->debug("in getTypeDef: type namespace forced to $ns");
 		}
@@ -6101,7 +6101,7 @@
         }
 
 		$xml = '';
-		if (strpos($type, ':')) {
+		if (strpos($type, ':')!==false) {
 			$uqType = substr($type, strrpos($type, ':') + 1);
 			$ns = substr($type, 0, strrpos($type, ':'));
 			$this->debug("in serializeType: got a prefixed type: $uqType, $ns");