var objAjax;

//for the portfolio page
function fSelectPort(objPortNum) {
	objAjax = gfAjax();
	
	
	//open: form method (POST or GET), Page 2 URL, asynchronous (true or false)
	objAjax.open("POST", "pages/data.php", true);
	
	strQS = 'section=reg&cat_id='+objPortNum.value; // QueryString format without ?
	// multiple QueryString values variable=one&variable=two
	
	objAjax.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	objAjax.setRequestHeader("Content-length", strQS.length);
	objAjax.setRequestHeader("Connection", "close");
	
	objAjax.send(strQS);
	objAjax.onreadystatechange = fSubPort;
}

function fSubPort() {
	//readyState is complete (4) AND HTTP status is OK (200)[404 is file not found]
	if (objAjax.readyState == 4 && objAjax.status == 200) {
		$('tr#sub_category')
		.fadeIn()
		.html('<td align="right">Sub Category</td><td>' + objAjax.responseText + '</td>');
	}
}
//end script for portfolio page