var http_request = new Array();
var handled = new Array();
var scanqueue = new Array();
var i=1, maxedout=0, sq=-1, nextscan=-1;
var inprogress=0, tl=0, numdone=0;

function URLencode(sStr) {
	return escape(sStr).replace(/\+/g, '%2B').replace(/\"/g,'%22').replace(/\'/g, '%27').replace(/\&/g, '%26');
}

function makeRequest(url, i) {
	if (window.XMLHttpRequest) { // Mozilla, Safari, etc.
		http_request[i] = new XMLHttpRequest();
		if (http_request[i].overrideMimeType) {
			http_request[i].overrideMimeType('text/xml');
		}
	} else if (window.ActiveXObject) { // IE
		try {
			http_request[i] = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				http_request[i] = new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e) {
			}
		}
	}
	if (!http_request[i]) {
		return false;
	}
	http_request[i].onreadystatechange = function(){handleResponse(i)};
	http_request[i].open('GET', url, true);
	http_request[i].send(null);
	return true;
}

function handleResponse(i){
	var tmplink, tmpanchor;
	if(http_request[i].readyState == 4){
		var xmldoc = http_request[i].responseXML;
		var ret = xmldoc.getElementsByTagName('scanresult').item(0);
		var ret_err = ret.getElementsByTagName('err').item(0).firstChild.data;
		if(ret_err!=0){
			alert(ret_err);
		}else{
			var resultsdiv = document.getElementById('resultsdiv');
			resultsdiv.style.display = "block";
			var domainIn = ret.getElementsByTagName('domainIn').item(0).firstChild.data;
			var domainChecked = ret.getElementsByTagName('domainChecked').item(0).firstChild.data;
			var kwd = unescape(ret.getElementsByTagName('kwd').item(0).firstChild.data);
			var found = Math.round(ret.getElementsByTagName('found').item(0).firstChild.data);
			var foundURL = ret.getElementsByTagName('foundURL').item(0).firstChild.data;
			var nextPageAvail = Math.round(ret.getElementsByTagName('nextPageAvail').item(0).firstChild.data);
			var resultsReturned = Math.round(ret.getElementsByTagName('resultsReturned').item(0).firstChild.data);
			var firstResultPosition = Math.round(ret.getElementsByTagName('firstResultPosition').item(0).firstChild.data);
			var totalResultsAvailable = Math.round(ret.getElementsByTagName('totalResultsAvailable').item(0).firstChild.data);
			if(found>0){
				var disp = kwd + ': ' + found + '<br />\n' + foundURL + '<br />\n';
				resultsdiv.innerHTML = resultsdiv.innerHTML + disp;
				numdone++;
			}else if(nextPageAvail>0){
				scan(domainIn, kwd, nextPageAvail);
			}else{
				var disp = kwd + ': Not Found<br />\n' + domainChecked + '<br />\n';
				resultsdiv.innerHTML = resultsdiv.innerHTML + disp;
				numdone++;
			};
			if(numdone>=tl){
				var thespinner = document.getElementById("spinner");
				thespinner.style.display = "none";
			};
		};
	}else{
		//alert('There was a problem with the request. ReadyState:' + http_request[i].readyState);
	};
}

function startScan(){
	if(inprogress!=0){
		return false;
	}else{
		inprogress=1;
	}
	//call to fancy DHTML goes here
}

function scan(domain, phrase, page){
	i++;
	phrase = URLencode(phrase)
	if(i<=100){
		makeRequest('yranked.php?term='+URLencode(phrase)+'&domain='+domain+'&page='+page, i);
	}else{
		maxedout = 1;
	};
	return true;
}

String.prototype.trim = function(){
	return this.replace(/^\s+|\s+$/g,"");
};

String.prototype.stripspc = function(){
	return this.replace(/\s/g,"");
};

function doform(){
	var terms = new Array;
	var ta_kwds = document.getElementById("kwds").value;
	terms = ta_kwds.trim().split("\n");
	for(i=0;i<terms.length;i++){
		terms[i] = terms[i].trim();
		if(terms[i]==""){
			terms.splice(i,1);
			i--;
		};
	};
	tl = (terms.length<5) ? terms.length : 5;
	var ta_str = "";
	for(i=0;i<tl;i++){
		ta_str += terms[i] + "\n";
	};
	document.getElementById("kwds").value = ta_str;
	var domainstr = document.getElementById("chkdomain").value;
	domainstr = domainstr.stripspc();
	if(tl>0){
		errbox.innerHTML = "";
		var thereset = document.getElementById("reset-switch");
		thereset.style.display = "inline";
		var thetoolform = document.getElementById("toolform");
		thetoolform.style.display = "none";
		var theresultsdiv = document.getElementById("resultsdiv");
		theresultsdiv.style.display = "block";
		var theprogressdiv = document.getElementById("progress");
		theprogressdiv.style.display = "block";
		var thekwdspan = document.getElementById("checkkeywords");
		thekwdspan.innerHTML = ta_str.trim().replace(/\n/g, ", ");
		var thedomainspan = document.getElementById("checkdomain");
		thedomainspan.innerHTML = domainstr;
	};
	for(i=0;i<tl;i++){
		var callstr = 'scan(\''+ domainstr + '\', \'' + terms[i] + '\', 1)';
		setTimeout(callstr, (50 * i) + 1);
	};
};