var http_request = false;

function makePOSTRequest(url, id, parameters) {
	http_request = false;
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) {
			// set type accordingly to anticipated content type
			http_request.overrideMimeType('text/html');
		}
	} else if (window.ActiveXObject) { // IE
		try {
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}
	
	if (!http_request) {
		alert('Cannot create XMLHTTP instance');
		return false;
	}
		
	http_request.open('POST', url, true);
	http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	http_request.setRequestHeader("Content-length", parameters.length);
	http_request.setRequestHeader("Connection", "close");
	
	http_request.onreadystatechange = function() {
		if (http_request.readyState == 4) {
			//alert(http_request.status);
			if (http_request.status == 200 || http_request.status == 0) {
				//alert(http_request.responseText);
				result = http_request.responseText;
				document.getElementById(id).innerHTML = result;
			} else {
				alert('There was a problem with the request.');
			}
		}
	}

	http_request.send(parameters);
}

function formData2QueryString(docForm) {

	var Form = document.forms[docForm];
	var strSubmit = '';
	var formElem;
	var strLastElemName = '';

	for (i = 0; i < Form.elements.length; i++) {
		formElem = Form.elements[i];
		switch (formElem.type) {
			// Text, select, hidden, password, textarea elements
			case 'text':
			case 'select-one':
			case 'hidden':
			case 'password':
			case 'textarea':
				strSubmit += formElem.name + 
				'=' + escape(formElem.value) + '&'
			break;
		}
	}
	
	return strSubmit;
}

function lookupPost(url, docForm, id){	
	
	var poststr = formData2QueryString(docForm);
	
	makePOSTRequest(url, id, poststr);
}


function updateLookup(id, name, membership){
	document.getElementById('user_user_id').value = id;
	document.getElementById('user_name').value = name;
	document.getElementById('user_member').value = membership;
	
	if(document.getElementById('ajax_submit')){
		document.getElementById('ajax_submit').submit();
	}
	
	hideContactLookupForm();
}