// reg/rjs/check_unique.js

var btnCheck = 'no';
function setUsernameInfoText() {
	var cont = document.getElementById('usernameInfo');
	cont.innerHTML = '<input type="button" class="gray_btn" value="Check" onclick="CheckUnickUsername();">';
	btnCheck = 'yes';
}

function CheckUnickUsername() {
	var cont = document.getElementById('usernameInfo');
	
	cont.innerHTML = '<img id="generatingSpinner" src="reg/rjs/wait.gif">Please wait...';

	var http = createRequestObject();
	if( http ) {
		http.open('get', 'reg/raj/check_unique.php?username='+document.getElementById('user_name').value);
		http.onreadystatechange = function () {
			if(http.readyState == 4) {
				cont.innerHTML = http.responseText;
				btnCheck = 'no';
			}
		}
		http.send(null);
	} else {
		document.location = '';
	}
}

function UsernameChange() {
	if(btnCheck == 'no') {
		var cont = document.getElementById('usernameInfo');
		setUsernameInfoText();
	}
}