var register_req;
var register_reqTimeout;
var register_interval;

function register_check(ask)
{
loadXMLDoc_register_check("register_check.php?"+ask);
}

function loadXMLDoc_register_check(url) {
    register_req = null;
    if (window.XMLHttpRequest) {
        try {
            register_req = new XMLHttpRequest();
        } catch (e){}
    } else if (window.ActiveXObject) {
        try {
            register_req = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e){
            try {
                register_req = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e){}
        }
    }
 
    if (register_req) {
    	register_req.onreadystatechange = processReqChange_register_check;
    	register_req.open("GET", url, true);
        register_req.send(null);
        register_reqTimeout = setTimeout("register_req.abort();", 5000);
    }
}
 
function processReqChange_register_check() {
	 if (register_req.readyState == 4) {
        clearTimeout(register_reqTimeout);
        if (register_req.status == 200) {
        	//alert(register_req.responseText);
        eval(register_req.responseText);
        } 
    }  
}