Im tryning to insert a picture into an inputTextArea after using the phongap plugin in my phone. Im able to retreive the image from my phone but after i insert that picture into the inputTextArea the picture does not show. However if I use an img tag it works

 var pictureSource,
                destinationType
 function onPhotoURISuccess(imageURI) {
            
               
                var postBox = document.getElementById(postBoxId);
            
                var newImage = document.createElement('img');
                newImage.style.display = 'block';
                newImage.width = '25';
                newImage.height = '25';
                newImage.src=imageURI;
                try{
                    postBox.appendChild(newImage);
                    postBox.innerHTML = postBox.innerHTML + '<div>Local Picture</div>';
                }
                catch(erro){
                    alert(erro);
                }
            
            
             
                
            }//end of pnPhotoURISuccess
            
            
            
            function getPhoto() {
            
                navigator.camera.getPicture(onPhotoURISuccess, onFail, {
                quality: 25, 
                destinationType: navigator.camera.DestinationType.FILE_URI,
                sourceType: navigator.camera.PictureSourceType.PHOTOLIBRARY
                });
            }
            
            function onFail(message) {
                alert('Failed because: ' + JSON.stringify(message));
            }

 Here is the visualforce code

<apex:image id="AttachPic" value="{!URLFOR($Resource.Resources, 'resources/icons/file_blank.png')}" height="15px" width="15px" styleClass="postImage" onclick="getPhoto();" ></apex:image>  
                    <apex:outputPanel title="Attach">Attach</apex:outputPanel>
                    <br/>  
                    
                    <apex:inputTextarea id="postBox" styleClass="chatterPostBox" rows="2" value="{!postBody}" onclick="MyIds(this);">
                        
                        </apex:inputTextarea>