Add delete button on docs

inc/catc.php

@@ -150,12 +150,19 @@ class CATC extends Main
 		return self::getJsonResult(!empty($asDocList), '', $asDocList);
 	}
 	
-	public function uploadDoc($iCourseId)
-	{
+	public function uploadDoc($iCourseId) {
 		$this->oClassManagement->incClass('uploader', true);
 		$oDoc = new Doc($this->oDb, $this->oAuth->getUserId(), $iCourseId);
 		$oUploader = new Uploader($oDoc);
 		
 		return $oUploader->sBody;
 	}
+	
+	public function deleteDoc($iDocId) {
+		$oDoc = new Doc($this->oDb);
+		$oDoc->setDocId($iDocId);
+		$bResult = $oDoc->delete();
+		
+		return self::getJsonResult($bResult, '');
+	}
 }