var _debug = true;

/********************************************************************
 * Story Level Email to Friend
 ********************************************************************/

var e2fVisible = false; 
var E2F_HTML_BUFFER = '';


// show or hide email to friend div
function emailToFriend() {
    try {
        var e2fDiv = document.getElementById("story-email-friend");        
        e2fDiv.style.display = (e2fVisible) ? "none" : "block";
        e2fVisible = !e2fVisible;
    } catch (error) {
        if (_debug) alert(error);
    }
}

function showEmailMessage(msg) {
    document.getElementById('emailAlert').innerHTML = msg;
    document.getElementById('emailAlert').style.display = (trim(msg) == '') ? "none" : "block";
}


function sendEmail() {

    var frm = document.forms['formEmailToFriend'];
    
    if (!isValidEmail(trim(frm.elements['origEmail'].value))) {
		showEmailMessage("<div style = \"font: 11px Verdana, Arial, Helvetica, sans-serif\">Please be sure your email address is valid.</div>");
        frm.elements['origEmail'].focus();
        return false;
    } else if (!isValidEmail(trim(frm.elements['destEmail'].value))) {
		showEmailMessage("<div style = \"font: 11px Verdana, Arial, Helvetica, sans-serif\">Please be sure your friend's email address is valid.</div>");
        frm.elements['destEmail'].focus();
        return false;
    } else {    
		var url = '/cgi-bin/WebObjects/Email.woa/wa/emailArticle' +
		'?origName=' + escape(trim(frm.elements['origName'].value)) +
		'&origEmail=' + escape(trim(frm.elements['origEmail'].value)) +
		'&destName=' + escape(trim(frm.elements['destName'].value)) +
		'&destEmail=' + escape(trim(frm.elements['destEmail'].value)) +
		'&message=' + escape(trim(frm.elements['message'].value)) +
		'&storyID=' + escape(trim(frm.elements['storyID'].value));

		var xmlhttp = GetXmlRequestObject();
		xmlhttp.open("GET", url, true);
		xmlhttp.onreadystatechange = function() {
			if (xmlhttp.readyState == 4) {
				var _res = trim(xmlhttp.responseText);
				//var _res = trim("email sent");
				showEmailSubmit((_res == 'OK'));
				return;    
			}
		}
		xmlhttp.send(null);
	}
}


function resetEmailForm() {
    document.getElementById('story-email-friend').innerHTML = E2F_HTML_BUFFER;    
    var frm = document.forms['formEmailToFriend'];
    frm.elements['destName'].value = '';
    frm.elements['destEmail'].value = '';
    frm.elements['message'].value = '';
    showEmailMessage('');
}

function showEmailSubmit(stat) {
    var obj = document.getElementById('story-email-friend');
    E2F_HTML_BUFFER = obj.innerHTML;
    var emailText = " <div class=\"story-email-container\"><div class=\"story-email-styler\" style=\"text-align: center; font: 11px Verdana, Arial, Helvetica, sans-serif\">" +
                    "Your email has been sent.<br /><br /><a href=\"#\" onClick=\"resetEmailForm();\">Click here to send another email.</a></div></div>";
    obj.innerHTML = emailText;
    return true;
}

/********************************************************************
 * Standard Functions
 ********************************************************************/

function trim(_str) {
    try {
        return _str.replace(/^\s*|\s*$/g, "");
    } catch (error) {
        return _str;
    }
}

function isValidEmail(addr) {
    var re = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
    return re.test(addr);
}

function GetXmlRequestObject () {
    // List of Microsoft XMLHTTP versions - newest first
    var MSXML_XMLHTTP_PROGIDS = new Array ('MSXML2.XMLHTTP.5.0', 'MSXML2.XMLHTTP.4.0', 'MSXML2.XMLHTTP.3.0',
                                           'MSXML2.XMLHTTP', 'Microsoft.XMLHTTP');
    // Do we support the request natively (eg, Mozilla, Opera, Safari, Konqueror)
    if (window.XMLHttpRequest != null)
         return new XMLHttpRequest ();
    else {
         // Look for a supported IE version
         for (i = 0; MSXML_XMLHTTP_PROGIDS.length > i; i++) {
              try {
                   return new ActiveXObject (MSXML_XMLHTTP_PROGIDS[i]);
              }
              catch (e) {}
         }
    }
} 

/********************************************************************
 * Rants
 ********************************************************************/

var RANT_HTML_BUFFER = '';
var RANT_MAX_LEN = 250;

function hilite(obj, state) {
    obj.style.backgroundColor = (state) ? "FloralWhite" : "Snow";
    return true;
}

function limitRantText(obj) {
    var elem = document.forms['rant'].elements['comment'];
    if (elem.value.length > RANT_MAX_LEN) 
        elem.value = elem.value.substring(0, RANT_MAX_LEN);
    else
        document.getElementById("rantCharCount").innerHTML = RANT_MAX_LEN - elem.value.length;
}


function submitRant() {

    var frm = document.forms['rant'];
    
	if (trim(frm.elements['name'].value) == '') {
		showRantMessage("<div style = \"font: 11px Verdana, Arial, Helvetica, sans-serif\">Please be sure to enter your name.</div>");
		frm.elements['name'].focus();
		return false;
	} else if (trim(frm.elements['location'].value) == '') {
		showRantMessage("<div style = \"font: 11px Verdana, Arial, Helvetica, sans-serif\">Please be sure to enter your location.</div>");
		frm.elements['location'].focus();
		return false;
	} else if (trim(frm.elements['comment'].value) == '') {
		showRantMessage("<div style = \"font: 11px Verdana, Arial, Helvetica, sans-serif\">Please be sure to enter a comment.</div>");
		frm.elements['comment'].focus();
		return false;
	} else {
		var url = '/cgi-bin/WebObjects/Rants.woa/wa/addRant' +
				  '?name=' + escape(trim(frm.elements['name'].value)) +
				  '&location=' + escape(trim(frm.elements['location'].value)) +
				  '&comments=' + escape(trim(frm.elements['comment'].value)) +
				  '&storyID=' + escape(trim(frm.elements['storyID'].value));
				  
		var xmlhttp = GetXmlRequestObject();
		xmlhttp.open("GET", url, true);
		xmlhttp.onreadystatechange = function() {
			if (xmlhttp.readyState == 4) {
				var _res = trim(xmlhttp.responseText);
				showRantSubmit((_res == 'OK'));
				return;    
			}
		}
		xmlhttp.send(null);
	}
}


function resetRantForm() {
    document.getElementById('story-rant-form').innerHTML = RANT_HTML_BUFFER;    
    var frm = document.forms['rant'];
    //frm.elements['rantButton'].value = 'Submit Rant';
    frm.elements['name'].value = '';
    frm.elements['location'].value = '';
    frm.elements['comment'].value = '';
    frm.elements['name'].focus();
    showRantMessage('');
}

function showRantSubmit(stat) {
    var obj = document.getElementById('story-rant-form');
    RANT_HTML_BUFFER = obj.innerHTML;
    var rantText = "<div style=\"border: 1px solid Silver; background-color: WhiteSmoke; padding: 10px; font-weight: bold; text-align: center; font: 11px Verdana, Arial, Helvetica, sans-serif\">" +
                   "Your comment has been submitted to our editors. Thoughtful contributions will be displayed online within 24 hours." +
                   "<br /><br /><a href=\"#rantListing\" onClick=\"resetRantForm();\">Click here to submit another comment</a></div>";
    obj.innerHTML = rantText;
    return true;
}

function showRantMessage(msg) {
    document.getElementById('rantAlert').innerHTML = msg;
    document.getElementById('rantAlert').style.display = (trim(msg) == '') ? "none" : "block";
}