var loginState = true

function submitSearch(e) {

	var searchQuery = String($('q').value).strip().toLowerCase()

	Element.show('searchMessage')

	if (searchQuery == '') {
		$('searchMessage').innerHTML = 'Please enter search terms'
		$('q').value = ''
		$('q').focus()

		return false;
	}
	else if (searchQuery == "youtube" || searchQuery == "you tube" || searchQuery == "youtube.com") {
		document.location = 'http://www.youtube.com'

		return false;
	}
	else {
		Element.hide('searchMessage')

		return true;
	}


}


function loginToSignup(useEffect) {

	$('loginHeader').innerHTML = 'Sign up for Vidista'
	$('loginButton').innerHTML = 'Sign up'
	$('loginOption').innerHTML = 'Already registered? <a href="#" onclick="signupToLogin(true)">Log in</a> now!'

	Element.show('signupForms')


	loginState = false
}

function signupToLogin(useEffect) {

	$('loginHeader').innerHTML = 'Log in'
	$('loginButton').innerHTML = 'Log in'
	$('loginOption').innerHTML = 'New to this site? <a href="#" onclick="loginToSignup(true)">Sign up</a> instantly!'

	Element.hide('signupForms')

	loginState = true
}


function loginUser() {

	var email = $('login_email').value
	var password = $('login_password').value
	var passc = $('login_passc').value

	var username = $('login_username').value
	var referral = $('login_referral').value

//	var code = $('login_code').value

	var errorText
	var errorOccurred = false

	if ($('errorMessage')) {
		Element.remove($('errorMessage'))
	}


	if (loginState) {
		if (email == "") {
			showErrorMessage($('login_email'), 'Please enter your e-mail address')
			errorOccurred = true
		}
		else if (password == "") {
			showErrorMessage($('login_password'), 'Please enter your password')
			errorOccurred = true
		}

		if (!errorOccurred) {
			attemptLogin(email, password)
		}
	}
	else if (!loginState) {

		if (email == "") {
			showErrorMessage($('login_email'), 'Please enter your e-mail address')
			errorOccurred = true
		}
		else if (password == "") {
			showErrorMessage($('login_password'), 'Please enter your password')
			errorOccurred = true
		}
		else if (passc == "") {
			showErrorMessage($('login_passc'), 'Please enter your password again')
			errorOccurred = true
		}
		else if (password != passc) {
			showErrorMessage($('login_passc'), 'Please re-enter your password again')
			errorOccurred = true
		}
		else if (username == "") {
			showErrorMessage($('login_username'), 'Please enter your user name')
			errorOccurred = true
		}
		else if (username.indexOf('&') != -1) {
			showErrorMessage($('login_username'), 'You may not use "&" in your name')
			errorOccurred = true
		}

		if (!errorOccurred) {
			attemptRegistration(email, password, username, referral)
		}
	}


}



function attemptLogin(email, password) {

	var url = 'asp/loginUser.asp';
	var pars = 'email=' + email + '&password=' + escape(MD5(password)) + '&reset=false' + '&r=' + Math.random();
		
	var myAjax = new Ajax.Request(
		url, 
		{
			method: 'post', 
			parameters: pars, 
			onLoading: function(response) {
				$('loginButton').innerHTML = 'Connecting...</div>'
			},
			onComplete: function(response) {
				var r = response.responseText
				var userInfo

				if (r != 'E-mail failure' && r != 'Password failure') {

					userInfo = String(r).split('&')
					activeUser = new ActiveUser(true, userInfo[1], userInfo[0], null)

					//Element.hide('loginBox')
					//Element.show('libraryBox')
					if ($('addMessage')) {
						$('addMessage').innerHTML = ""
					}
					if ($('userSearchBox')) {
						window.location.reload()
						//Element.show($('userSearchBox'))
					}
					if ($('addBox')) {
						Element.hide($('loginBox'))
						Element.show($('addBox'))
					}
					else {
						$('loginBox').innerHTML = '<h3>Welcome</h3><div class="contentBox noFormFooter">Welcome '+activeUser.name+', you are now logged in! You may return to Vidista to <a href="http://www.vidista.com">view your library</a>.</div>'
					}
					
				}
				else if (r == 'E-mail failure') {
					showErrorMessage($('login_email'), 'This address is not registered')
					$('loginButton').innerHTML = 'Try again</div>'
				}
				else if (r == 'Password failure') {
					showErrorMessage($('login_password'), 'Please re-enter your password')
					$('loginButton').innerHTML = 'Try again</div>'
				}
			},
			onFailure: function(response) {
				showErrorMessage($('login_password'), 'There was a problem connecting to the server')
				$('loginButton').innerHTML = 'Try again</div>'
			}
		});


}

function attemptRegistration(email, password, username, referral) {

	var url = 'asp/registerNewUser.asp';
	var pars = 'email=' + email + '&password=' + escape(MD5(password)) + '&username=' + escape(username) + '&referral=' + escape(referral) +"&r=" + Math.random();

	var myAjax = new Ajax.Request(
		url, 
		{
			method: 'post', 
			parameters: pars, 
			onLoading: function(response) {
				$('loginButton').innerHTML = 'Connecting...</div>'
			},
			onComplete: function(response) {
				var r = response.responseText
				if (r == 'Success') {
					attemptLogin(email, password)
				}
				else {
					showErrorMessage($('login_email'), r)
					$('loginButton').innerHTML = 'Try again</div>'
				}
			},
			onFailure: function(response) {
				showErrorMessage($('login_username'), 'There was a problem connecting to the server')
				$('loginButton').innerHTML = 'Try again</div>'
			}
		});
}


function logout() {

	var url = 'asp/logoutUser.asp';
	var r =  "r=" + Math.random();
	var myAjax = new Ajax.Request(
		url, 
		{
			method: 'get', 
			parameters: r,
			onComplete: function() {

				activeUser = new ActiveUser(false, null, null, null)
			}
		});

}

function showErrorMessage(afterThisElement, errorText) {

	var errorMessage = '<div class="errorMessage" id="errorMessage">' + errorText + '</div>'

	new Insertion.Bottom(afterThisElement.parentNode, errorMessage)

	afterThisElement.select()

}


function loadXml(text) {

	// code for IE
	if (window.ActiveXObject) {
		var doc=new ActiveXObject("Microsoft.XMLDOM");
		doc.async="false";
		doc.loadXML(text);
	}

	// code for Mozilla, Firefox, Opera, etc.
	else {
		var parser=new DOMParser();
	var doc=parser.parseFromString(text,"text/xml");
	}

	return doc
}


/**
*
*  MD5 (Message-Digest Algorithm)
*  http://www.webtoolkit.info/
*
**/

var MD5 = function (string) {

    function RotateLeft(lValue, iShiftBits) {
        return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits));
    }

    function AddUnsigned(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);
        }
    }

    function F(x,y,z) { return (x & y) | ((~x) & z); }
    function G(x,y,z) { return (x & z) | (y & (~z)); }
    function H(x,y,z) { return (x ^ y ^ z); }
    function I(x,y,z) { return (y ^ (x | (~z))); }

    function FF(a,b,c,d,x,s,ac) {
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac));
        return AddUnsigned(RotateLeft(a, s), b);
    };

    function GG(a,b,c,d,x,s,ac) {
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac));
        return AddUnsigned(RotateLeft(a, s), b);
    };

    function HH(a,b,c,d,x,s,ac) {
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac));
        return AddUnsigned(RotateLeft(a, s), b);
    };

    function II(a,b,c,d,x,s,ac) {
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac));
        return AddUnsigned(RotateLeft(a, s), b);
    };

    function ConvertToWordArray(string) {
        var lWordCount;
        var lMessageLength = string.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] | (string.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;
    };

    function WordToHex(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;
    };

    function Utf8Encode(string) {
        string = string.replace(/\r\n/g,"\n");
        var utftext = "";

        for (var n = 0; n < string.length; n++) {

            var c = string.charCodeAt(n);

            if (c < 128) {
                utftext += String.fromCharCode(c);
            }
            else if((c > 127) && (c < 2048)) {
                utftext += String.fromCharCode((c >> 6) | 192);
                utftext += String.fromCharCode((c & 63) | 128);
            }
            else {
                utftext += String.fromCharCode((c >> 12) | 224);
                utftext += String.fromCharCode(((c >> 6) & 63) | 128);
                utftext += String.fromCharCode((c & 63) | 128);
            }

        }

        return utftext;
    };

    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;

    string = Utf8Encode(string);

    x = ConvertToWordArray(string);

    a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;

    for (k=0;k<x.length;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();
}