function image_upload_check() {
	var ext = document.photos_upload.photo.value;
	ext = ext.substring(ext.length-3,ext.length);
	ext = ext.toLowerCase();
	if(ext != 'jpg') {
		alert('You selected a .'+ext+' file; please select a .jpg file instead!');
		return false;
	} else {
		return true; 
	}
} 

function avatar_upload_check() {
	var ext = document.useravatar.avatar.value;
	ext = ext.substring(ext.length-3,ext.length);
	ext = ext.toLowerCase();
	if(ext != 'jpg') {
		alert('You selected a .'+ext+' file; please select a .jpg file instead!');
		return false;
	} else {
		return true;
	}
} 

function insert_text_at_cursor(tfield, tstring) {
	if (document.selection) {
		tfield.focus();
		sel = document.selection.createRange();
		sel.text = tstring;
	} else if (tfield.selectionStart || tfield.selectionStart == '0') {
		var startPos = tfield.selectionStart;
		var endPos = tfield.selectionEnd;
		tfield.value = tfield.value.substring(0, startPos)+ tstring+ tfield.value.substring(endPos, tfield.value.length);
	} else {
		tfield.value += tstring;
	}
}

function insert_thumbnail(ifield,istring,iurl) {
	ifield.value=istring;
	opener.document.getElementById('blog_thumbnail').innerHTML = '<img src="'+ iurl+'/' + istring + '">';
}

function createRequestObject() {
        var ro;
        var browser = navigator.appName;
        if(browser == "Microsoft Internet Explorer"){
                ro = new ActiveXObject("Microsoft.XMLHTTP");
        }else{
                ro = new XMLHttpRequest();
        }
        return ro;
}

var http = createRequestObject();
var http_request = false;

function sndReq(seID, eID, mod, sub, id, uid, refmod, dataout) {
        //document.getElementById(eID).innerHTML = 'Updating...'
        http.open('get', 'rpc.php?mod='+mod+'&sub='+sub+'&id='+id+'&uid='+uid+'&refmod='+refmod+'&eID='+eID+'&data='+dataout);
        http.onreadystatechange = handleResponse;
        http.send(null);
}

function handleResponse() {
        if(http.readyState == 4){
                var response = http.responseText;
                var update = new Array();

                if(response.indexOf('|') != -1) {
                        update = response.split('|');
                        if(document.getElementById(update[0])) {
                                document.getElementById(update[0]).innerHTML = update[1];
                        } else {
                                location.reload(true);
                        }
                }
        }
}




function makeRequest(url, parameters) {
        http_request = false;
        if (window.XMLHttpRequest) { // Mozilla, Safari,...
                http_request = new XMLHttpRequest();
                        if (http_request.overrideMimeType) {
                                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.onreadystatechange = alertContents;
        http_request.open('GET', url + parameters, true);
        http_request.send(null);
}

function alertContents() {
        if (http_request.readyState == 4) {
                if (http_request.status == 200) {
                        result = http_request.responseText;
                        if(result.indexOf('|') != -1) {
                                update = result.split('|');
                                if(document.getElementById(update[0])) {
                                        document.getElementById(update[0]).innerHTML = update[1];
                                } else {
                                        alert('1There was a problem with the request.');
                                }
                        } else {
                                alert('2There was a problem with the request.');
                        }
                } else {
                        alert('3There was a problem with the request.');
                }
        }
}

function get(obj,output) {
        var getstr = "?eID=" + output + "&";
        for (i=0; i<obj.getElementsByTagName("input").length; i++) {
                if (obj.getElementsByTagName("input")[i].type == "text") {
                        getstr += obj.getElementsByTagName("input")[i].name + "=" +
                        obj.getElementsByTagName("input")[i].value + "&";
                }
                if (obj.getElementsByTagName("input")[i].type == "hidden") {
                        getstr += obj.getElementsByTagName("input")[i].name + "=" +
                        obj.getElementsByTagName("input")[i].value + "&";
                }
                if (obj.getElementsByTagName("input")[i].type == "checkbox") {
                        if (obj.getElementsByTagName("input")[i].checked) {
                                getstr += obj.getElementsByTagName("input")[i].name + "=" +
                                obj.getElementsByTagName("input")[i].value + "&";
                        } else {
                                getstr += obj.getElementsByTagName("input")[i].name + "=&";
                        }
                }
                if (obj.getElementsByTagName("input")[i].type == "radio") {
                        if (obj.getElementsByTagName("input")[i].checked) {
                                getstr += obj.getElementsByTagName("input")[i].name + "=" +
                                obj.getElementsByTagName("input")[i].value + "&";
                        }
                }
                if (obj.getElementsByTagName("input")[i].tagName == "SELECT") {
                        var sel = obj.getElementsByTagName("input")[i];
                        getstr += sel.name + "=" + sel.options[sel.selectedIndex].value + "&";
                }
        }
        makeRequest('rpc.php', getstr);
}

function post(obj,output) {
        var getstr = "?eID=" + output + "&";
        for (i=0; i<obj.getElementsByTagName("input").length; i++) {
                if (obj.getElementsByTagName("input")[i].type == "text") {
                        getstr += obj.getElementsByTagName("input")[i].name + "=" +
                        obj.getElementsByTagName("input")[i].value + "&";
                }
                if (obj.getElementsByTagName("input")[i].type == "hidden") {
                        getstr += obj.getElementsByTagName("input")[i].name + "=" +
                        obj.getElementsByTagName("input")[i].value + "&";
                }
                if (obj.getElementsByTagName("input")[i].type == "checkbox") {
                        if (obj.getElementsByTagName("input")[i].checked) {
                                getstr += obj.getElementsByTagName("input")[i].name + "=" +
                                obj.getElementsByTagName("input")[i].value + "&";
                        } else {
                                getstr += obj.getElementsByTagName("input")[i].name + "=&";
                        }
                }
                if (obj.getElementsByTagName("input")[i].type == "radio") {
                        if (obj.getElementsByTagName("input")[i].checked) {
                                getstr += obj.getElementsByTagName("input")[i].name + "=" +
                                obj.getElementsByTagName("input")[i].value + "&";
                        }
                }
                if (obj.getElementsByTagName("input")[i].tagName == "SELECT") {
                        var sel = obj.getElementsByTagName("input")[i];
                        getstr += sel.name + "=" + sel.options[sel.selectedIndex].value + "&";
                }
        }
        makePostRequest('rpc.php', getstr);
}