JoomlaComponent + AJAX - Разработка расширений для Joomla 2.5

<form action="index.php?option=com_mycomponent/form_handler.php"  method="post" enctype="multipart/form-data">
        <input type="file" name="Filedata" />
    <input type="submit" />
</form>

echo JRoute::_('index.php?option=com_component&view=viewname');
echo JRoute::_('index.php?option=com_component&task=controllername.methodname');

function createObject() {var request_type;
var browser = navigator.appName;
if(browser == "Microsoft Internet Explorer"){
request_type = new ActiveXObject("Microsoft.XMLHTTP");
} else {
request_type = new XMLHttpRequest();
}
return request_type;
}

var http = createObject();

/* -------------------------- */
function searchNameq() {
teacher = encodeURI(document.getElementById('teacher').value);
cabinet = encodeURI(document.getElementById('cabinet').value);
nedelya = encodeURI(document.getElementById('nedelya').value)
time = encodeURI(document.getElementById('time').value)
nocache = Math.random();
http.open('get', '/components/com_hello/proverka.php?teacher='+teacher+'&cabinet='+cabinet+'&nedelya='+nedelya+'&time='+time+'&nocache = '+nocache);
http.onreadystatechange =  searchNameqReply;
http.send(null);
}
function searchNameqReply() {
if(http.readyState == 4){
var response = http.responseText;
document.getElementById('search-result').innerHTML = response;
}
}

<form action="index.php?option=com_hello&format=raw"  method="post" enctype="multipart/form-data">
        <input type="file" name="Filedata" />
		<input type="submit" />
		<input type="hidden" name="option" value="com_hello" />
		<input type="hidden" name="view" value="default" />
		<input type="hidden" name="layout" value="bd" />
</form>