var g_sites = []; //'myip';
var g_si_sites_idx = 0;

var g_si_req_num = 10;
var g_delimiter = " ";

var g_si_req = new Array(g_si_req_num);

//containers for each antiviurs result
var g_si_container0 = new Array(g_si_req_num);
for (i = 0; i < g_si_container0.length; i++) {
	g_si_container0[i] = 0;
}




function si_loadXMLDoc(rid, url, func) {
	//alert("request:"+rid);
    if (window.XMLHttpRequest) {
		//alert("XMLHttpRequest OK");
        g_si_req[rid] = new XMLHttpRequest();
        g_si_req[rid] .onreadystatechange =function () {
			func(rid);
		}
        g_si_req[rid] .open("GET", url, true);
        g_si_req[rid] .send(null);
    } else if (window.ActiveXObject) {
		//alert("ActiveXObject OK");
        g_si_req[rid]  = new ActiveXObject("Microsoft.XMLHTTP");
        if (g_si_req[rid] ) {
            g_si_req[rid] .onreadystatechange =function () {
			  func(rid);
		    }
            g_si_req[rid] .open("GET", url, true);
            g_si_req[rid] .send();
        }
    } else {
		alert("Cannot send request, maybe you need Firefox");
	}
}



function si_process_req(rid) {   

	if (g_si_req[rid].readyState == 4) {
		if (g_si_req[rid].status == 200) {
			var mytext=g_si_req[rid].responseText;

			g_si_container0[rid].innerHTML = mytext;
			g_si_container0[rid]=0;

		} else {
			g_si_container0[rid].innerHTML.replace("<img border=0 src=\"/images/spinner.gif\">", 'E');;//g_delimiter +"Error or Aborted";

			g_si_container0[rid]=0;

		}
		si_query();
	}  
}



function si_query(param)
{
	var rid = -1;
	var id = 0;
	var site = 'myip.cn';

	for (i = 0; i < g_si_container0.length; i++) {
		if (g_si_container0[i] == 0) {
			rid = i;
			break;
		}
	}

	if(rid == -1){ 
		alert("Please wait, too many requests");
	} else {
	
		if (param != null && param != "") {
			site = param;
			id = 0;
			g_si_sites_idx++;
			//g_sites = [];
		} else {
			if (g_si_sites_idx >= g_sites.length) {
				//return false;
				return;
			}
			id = g_si_sites_idx;
			g_si_sites_idx++;

			site = g_sites[id];
		}

		res_id =  'res_si_'+id;
		g_si_container0[rid] = document.getElementById(res_id);
		if (g_si_container0[rid] == null) {
			//return false;
			return;
			alert("Internal error, no container0");
		}

		g_si_container0[rid].innerHTML+=" <img border=0 src=\"/images/spinner.gif\">";


		var url = '/si.php?q='+site;
		//send request
		si_loadXMLDoc(rid, url, si_process_req);    
    }
}