var sharePopup;
var warnPopup;
var referralUrl;
var windowTitle; 
var fromReferPage;
var popupHTML;

function closeShare() {
	if (sharePopup) {
		try {
			sharePopup.cancel();
			sharePopup.destroy();
		} catch(err){
		
		}
	}
}
function closeWarn() {
	if (warnPopup) {
		try	{
			warnPopup.cancel();
			warnPopup.destroy();
		} catch(err){
		
		}
	}

}

/*
function shareProduct() {
	showWarn(windowTitle,'Please log in before sharing this product with a friend.');
}
*/

function shareProduct() {	
	fromReferPage = 0;
	referralUrl = window.location.href;
	windowTitle = 'Share This Product';
	if (!popupHTML) {
		document.getElementById('refer_url').innerHTML = 'http://' + window.location.host + window.location.pathname;
		popupHTML = document.getElementById('share_product').innerHTML;
		document.getElementById('share_product').innerHTML = '';
	}
	sharePopup = showPopup('sharePopup','Share This Product',popupHTML,'450px','auto',false,false,false,[ {text: "Send!", handler: saveShareProduct, isDefault: true}, {text: "Close", handler: closeShare, isDefault: false}] )
}

function saveShareProduct() {
	var callback = {
		success: function(o) {
			var r = eval(o.responseText);
			if (r.response == 'success') {
				saveReferral();
				closeShare();
				sharePopup = showPopup('sharePopup',windowTitle,'Your message has been sent!','250px','auto',closeShare,false,false,null)
			} else {
				showWarn(windowTitle,r.message);
			}

		},
		failure: function(o) {
			showWarn(windowTitle,'An error occured while sending your message. '+o.responseText);
		},
		argument: []
	}

	if (!document.getElementById('friends_name').value) {
		showWarn(windowTitle,'Please enter your friend\'s name.');
		return;
	}
	if (!document.getElementById('friends_email').value) {
		showWarn(windowTitle,'Please enter your friend\'s email address.');
		return;
	}
	if (!document.getElementById('message').value) {
		showWarn(windowTitle,'Please enter a message.');
		return;
	}
// 	showLoading('Please wait...');

	// Submit the info to check if we can make the referral
	var transaction = YAHOO.util.Connect.asyncRequest('GET', '/?action=custom&ss=referral_ok&friends_email=' + document.getElementById('friends_email').value, callback, null); 
}

function saveAcctReferral() {
	fromReferPage = 1;
	referralUrl = document.getElementById('refer_url').innerHTML;
	windowTitle = 'Refer a Friend';
	saveShareProduct();
}

function referFriend() {
	fromReferPage = 1;
	referralUrl = document.getElementById('refer_url').value;
	windowTitle = 'Refer a Friend';
	closeShare();
	
	var callback = {
		success: function(o) {
			var r = eval(o.responseText);
			if (r.response == 'success') {
				saveReferral();
				closeShare();
				sharePopup = showPopup('sharePopup',windowTitle,'Your message has been sent!','250px','auto',closeShare,false,false,null)
			} else {
				showWarn(windowTitle,r.message);
			}

		},
		failure: function(o) {
			showWarn(windowTitle,'An error occured while sending your message. '+o.responseText);
		},
		argument: []
	}

	if (!document.getElementById('friends_name').value) {
		showWarn(windowTitle,'Please enter your friend\'s name.');
		return;
	}
	if (!document.getElementById('friends_email').value) {
		showWarn(windowTitle,'Please enter your friend\'s email address.');
		return;
	}
	if (!document.getElementById('message').value) {
		showWarn(windowTitle,'Please enter a message.');
		return;
	}

	var transaction = YAHOO.util.Connect.asyncRequest('GET', '/?action=custom&ss=referral_ok&friends_email=' + document.getElementById('friends_email').value, callback, null); 
}


function saveReferral() {
	var d = new Date();
	var date = d.getFullYear() + '-' + (d.getMonth() + 1) + '-' + d.getDate() + ' ' + 
	           d.getHours() + ':' + d.getMinutes() + ':' + d.getSeconds(); 

	activity = 'refer_friend_sent';
	email = sender_email;
	extra = {
		'friends_email': document.getElementById('friends_email').value,
		'friends_name':  document.getElementById('friends_name').value,
		'created':       date,
		'secret_code':   md5(date + sender_email + document.getElementById('friends_email').value),
		'url':           referralUrl,
		'message':       document.getElementById('message').value
	}
	trackActivity();
	if (fromReferPage) {
		document.getElementById('friends_email').value = '';
		document.getElementById('friends_name').value = '';
	}
}

function showPopup(name, headtext, bodytext, wd, ht, ok_callback, save_callback, show_cancel, extra_buttons) {
	var newdiv = document.createElement('div');
	newdiv.setAttribute('id','popup-'+name);
	newdiv.innerHTML = '<div class="hd">'+headtext+'</div><div class="bd">'+bodytext+'</div>';
	document.body.appendChild(newdiv);

	var handleCancel = function() {
		this.cancel();
		this.destroy();
	}
	
	var mybuttons = new Array();
	if (extra_buttons) {
		if (extra_buttons.length) {
			for (i=0; i<extra_buttons.length; i++) {
				mybuttons.push(extra_buttons[i]);
			}
		} else {
			mybuttons.push(extra_buttons);	
		}
	}
	if (ok_callback) {
		mybuttons.push({ text:"OK", handler:ok_callback });
	}
	if (save_callback) {
		mybuttons.push({ text:"Save", handler:save_callback });
	}
	if (show_cancel) {
		mybuttons.push({ text:"Cancel", handler:handleCancel });
	}
	
	var newDialog = new YAHOO.widget.Dialog("popup-"+name, {
		fixedcenter: true,
		visible: false,
		width: wd,
		height: ht,
		modal: true,
		close: false,
		buttons : mybuttons,
		monitorresize: false,
		underlay: 'none',
		autofillheight: null,
		iframe: true,
		zIndex: 20000
	} ); 

	newDialog.render(); 
	newDialog.show(); 
	return newDialog;
}

function showWarn(title, message) {
	if (message) {
		warnPopup = showPopup('pleasewait',title, message,'250px','auto',closeWarn);
	}
	
}

function showLoading(message) {
	if (!message) {
		message = "Loading, please wait...";
	}
	pleaseWait = showPopup('pleasewait',message, '<img src="/2008/images/rel_interstitial_loading.gif" />');
}

function hideLoading() {
	if (pleaseWait) {
		pleaseWait.cancel(); 
		pleaseWait.destroy(); 
	}
}

function md5 ( str ) {
    // http://kevin.vanzonneveld.net
    // +   original by: Webtoolkit.info (http://www.webtoolkit.info/)
    // + namespaced by: Michael White (http://getsprink.com)
    // +    tweaked by: Jack
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: Brett Zamir (http://brettz9.blogspot.com)
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // -    depends on: utf8_encode
    // *     example 1: md5('Kevin van Zonneveld');
    // *     returns 1: '6e658d4bfcb59cc13f96c14450ac40b9'
 
    var xl;
 
    var RotateLeft = function(lValue, iShiftBits) {
        return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits));
    };
 
    var AddUnsigned = function(lX,lY) {
        var lX4,lY4,lX8,lY8,lResult;
        lX8 = (lX & 0x80000000);
        lY8 = (lY & 0x80000000);
        lX4 = (lX & 0x40000000);
        lY4 = (lY & 0x40000000);
        lResult = (lX & 0x3FFFFFFF)+(lY & 0x3FFFFFFF);
        if (lX4 & lY4) {
            return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
        }
        if (lX4 | lY4) {
            if (lResult & 0x40000000) {
                return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
            } else {
                return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
            }
        } else {
            return (lResult ^ lX8 ^ lY8);
        }
    };
 
    var F = function(x,y,z) { return (x & y) | ((~x) & z); };
    var G = function(x,y,z) { return (x & z) | (y & (~z)); };
    var H = function(x,y,z) { return (x ^ y ^ z); };
    var I = function(x,y,z) { return (y ^ (x | (~z))); };
 
    var FF = function(a,b,c,d,x,s,ac) {
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac));
        return AddUnsigned(RotateLeft(a, s), b);
    };
 
    var GG = function(a,b,c,d,x,s,ac) {
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac));
        return AddUnsigned(RotateLeft(a, s), b);
    };
 
    var HH = function(a,b,c,d,x,s,ac) {
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac));
        return AddUnsigned(RotateLeft(a, s), b);
    };
 
    var II = function(a,b,c,d,x,s,ac) {
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac));
        return AddUnsigned(RotateLeft(a, s), b);
    };
 
    var ConvertToWordArray = function(str) {
        var lWordCount;
        var lMessageLength = str.length;
        var lNumberOfWords_temp1=lMessageLength + 8;
        var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64;
        var lNumberOfWords = (lNumberOfWords_temp2+1)*16;
        var lWordArray=Array(lNumberOfWords-1);
        var lBytePosition = 0;
        var lByteCount = 0;
        while ( lByteCount < lMessageLength ) {
            lWordCount = (lByteCount-(lByteCount % 4))/4;
            lBytePosition = (lByteCount % 4)*8;
            lWordArray[lWordCount] = (lWordArray[lWordCount] | (str.charCodeAt(lByteCount)<<lBytePosition));
            lByteCount++;
        }
        lWordCount = (lByteCount-(lByteCount % 4))/4;
        lBytePosition = (lByteCount % 4)*8;
        lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80<<lBytePosition);
        lWordArray[lNumberOfWords-2] = lMessageLength<<3;
        lWordArray[lNumberOfWords-1] = lMessageLength>>>29;
        return lWordArray;
    };
 
    var WordToHex = function(lValue) {
        var WordToHexValue="",WordToHexValue_temp="",lByte,lCount;
        for (lCount = 0;lCount<=3;lCount++) {
            lByte = (lValue>>>(lCount*8)) & 255;
            WordToHexValue_temp = "0" + lByte.toString(16);
            WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length-2,2);
        }
        return WordToHexValue;
    };
 
    var x=Array();
    var k,AA,BB,CC,DD,a,b,c,d;
    var S11=7, S12=12, S13=17, S14=22;
    var S21=5, S22=9 , S23=14, S24=20;
    var S31=4, S32=11, S33=16, S34=23;
    var S41=6, S42=10, S43=15, S44=21;
 
    str = utf8_encode(str);
    x = ConvertToWordArray(str);
    a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
    
    xl = x.length;
    for (k=0;k<xl;k+=16) {
        AA=a; BB=b; CC=c; DD=d;
        a=FF(a,b,c,d,x[k+0], S11,0xD76AA478);
        d=FF(d,a,b,c,x[k+1], S12,0xE8C7B756);
        c=FF(c,d,a,b,x[k+2], S13,0x242070DB);
        b=FF(b,c,d,a,x[k+3], S14,0xC1BDCEEE);
        a=FF(a,b,c,d,x[k+4], S11,0xF57C0FAF);
        d=FF(d,a,b,c,x[k+5], S12,0x4787C62A);
        c=FF(c,d,a,b,x[k+6], S13,0xA8304613);
        b=FF(b,c,d,a,x[k+7], S14,0xFD469501);
        a=FF(a,b,c,d,x[k+8], S11,0x698098D8);
        d=FF(d,a,b,c,x[k+9], S12,0x8B44F7AF);
        c=FF(c,d,a,b,x[k+10],S13,0xFFFF5BB1);
        b=FF(b,c,d,a,x[k+11],S14,0x895CD7BE);
        a=FF(a,b,c,d,x[k+12],S11,0x6B901122);
        d=FF(d,a,b,c,x[k+13],S12,0xFD987193);
        c=FF(c,d,a,b,x[k+14],S13,0xA679438E);
        b=FF(b,c,d,a,x[k+15],S14,0x49B40821);
        a=GG(a,b,c,d,x[k+1], S21,0xF61E2562);
        d=GG(d,a,b,c,x[k+6], S22,0xC040B340);
        c=GG(c,d,a,b,x[k+11],S23,0x265E5A51);
        b=GG(b,c,d,a,x[k+0], S24,0xE9B6C7AA);
        a=GG(a,b,c,d,x[k+5], S21,0xD62F105D);
        d=GG(d,a,b,c,x[k+10],S22,0x2441453);
        c=GG(c,d,a,b,x[k+15],S23,0xD8A1E681);
        b=GG(b,c,d,a,x[k+4], S24,0xE7D3FBC8);
        a=GG(a,b,c,d,x[k+9], S21,0x21E1CDE6);
        d=GG(d,a,b,c,x[k+14],S22,0xC33707D6);
        c=GG(c,d,a,b,x[k+3], S23,0xF4D50D87);
        b=GG(b,c,d,a,x[k+8], S24,0x455A14ED);
        a=GG(a,b,c,d,x[k+13],S21,0xA9E3E905);
        d=GG(d,a,b,c,x[k+2], S22,0xFCEFA3F8);
        c=GG(c,d,a,b,x[k+7], S23,0x676F02D9);
        b=GG(b,c,d,a,x[k+12],S24,0x8D2A4C8A);
        a=HH(a,b,c,d,x[k+5], S31,0xFFFA3942);
        d=HH(d,a,b,c,x[k+8], S32,0x8771F681);
        c=HH(c,d,a,b,x[k+11],S33,0x6D9D6122);
        b=HH(b,c,d,a,x[k+14],S34,0xFDE5380C);
        a=HH(a,b,c,d,x[k+1], S31,0xA4BEEA44);
        d=HH(d,a,b,c,x[k+4], S32,0x4BDECFA9);
        c=HH(c,d,a,b,x[k+7], S33,0xF6BB4B60);
        b=HH(b,c,d,a,x[k+10],S34,0xBEBFBC70);
        a=HH(a,b,c,d,x[k+13],S31,0x289B7EC6);
        d=HH(d,a,b,c,x[k+0], S32,0xEAA127FA);
        c=HH(c,d,a,b,x[k+3], S33,0xD4EF3085);
        b=HH(b,c,d,a,x[k+6], S34,0x4881D05);
        a=HH(a,b,c,d,x[k+9], S31,0xD9D4D039);
        d=HH(d,a,b,c,x[k+12],S32,0xE6DB99E5);
        c=HH(c,d,a,b,x[k+15],S33,0x1FA27CF8);
        b=HH(b,c,d,a,x[k+2], S34,0xC4AC5665);
        a=II(a,b,c,d,x[k+0], S41,0xF4292244);
        d=II(d,a,b,c,x[k+7], S42,0x432AFF97);
        c=II(c,d,a,b,x[k+14],S43,0xAB9423A7);
        b=II(b,c,d,a,x[k+5], S44,0xFC93A039);
        a=II(a,b,c,d,x[k+12],S41,0x655B59C3);
        d=II(d,a,b,c,x[k+3], S42,0x8F0CCC92);
        c=II(c,d,a,b,x[k+10],S43,0xFFEFF47D);
        b=II(b,c,d,a,x[k+1], S44,0x85845DD1);
        a=II(a,b,c,d,x[k+8], S41,0x6FA87E4F);
        d=II(d,a,b,c,x[k+15],S42,0xFE2CE6E0);
        c=II(c,d,a,b,x[k+6], S43,0xA3014314);
        b=II(b,c,d,a,x[k+13],S44,0x4E0811A1);
        a=II(a,b,c,d,x[k+4], S41,0xF7537E82);
        d=II(d,a,b,c,x[k+11],S42,0xBD3AF235);
        c=II(c,d,a,b,x[k+2], S43,0x2AD7D2BB);
        b=II(b,c,d,a,x[k+9], S44,0xEB86D391);
        a=AddUnsigned(a,AA);
        b=AddUnsigned(b,BB);
        c=AddUnsigned(c,CC);
        d=AddUnsigned(d,DD);
    }
 
    var temp = WordToHex(a)+WordToHex(b)+WordToHex(c)+WordToHex(d);
 
    return temp.toLowerCase();
}

function utf8_encode ( string ) {
    // http://kevin.vanzonneveld.net
    // +   original by: Webtoolkit.info (http://www.webtoolkit.info/)
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: sowberry
    // +    tweaked by: Jack
    // +   bugfixed by: Onno Marsman
    // +   improved by: Yves Sucaet
    // +   bugfixed by: Onno Marsman
    // *     example 1: utf8_encode('Kevin van Zonneveld');
    // *     returns 1: 'Kevin van Zonneveld'
 
    string = (string+'').replace(/\r\n/g, "\n").replace(/\r/g, "\n");
 
    var utftext = "";
    var start, end;
    var stringl = 0;
 
    start = end = 0;
    stringl = string.length;
    for (var n = 0; n < stringl; n++) {
        var c1 = string.charCodeAt(n);
        var enc = null;
 
        if (c1 < 128) {
            end++;
        } else if((c1 > 127) && (c1 < 2048)) {
            enc = String.fromCharCode((c1 >> 6) | 192) + String.fromCharCode((c1 & 63) | 128);
        } else {
            enc = String.fromCharCode((c1 >> 12) | 224) + String.fromCharCode(((c1 >> 6) & 63) | 128) + String.fromCharCode((c1 & 63) | 128);
        }
        if (enc != null) {
            if (end > start) {
                utftext += string.substring(start, end);
            }
            utftext += enc;
            start = end = n+1;
        }
    }
 
    if (end > start) {
        utftext += string.substring(start, string.length);
    }
 
    return utftext;
}