function checkPassword(str) {
	var filter=/^.{4,128}$/i;
	if (filter.test(str)) return (true);
	return (false);
}

function checkUsername(str) {
	var filter=/^[\w-()@:]{2,128}$/i;
	if (filter.test(str)) return (true);
	return (false);
}

function checkUserFormEmails(f,e,n)
{
	if(!f||!e||!n) return;
	if(!f.email1||!f.email2 ) return;	
	if(!checkEmail(f.email1.value)) {
		n.push(f.email1);
		e.push("Please enter a valid email address.");
	}
	else if(f.email1.value!=f.email2.value) {
		n.push(f.email2);
		e.push("Your email address is not the same as confirm email address.  Please double check and resubmit.");
	}
}

function checkUserFormPassword(f,e,n)
{
	if(!f||!e||!n) return;
	if(!f.pass1||!f.pass2||!f.pass) return;
	if(!checkPassword(f.pass1.value)) {
		n.push(f.pass1);
		e.push("Password must be at least 4 characters long.");
	}
	else if(f.pass1.value!=f.pass2.value) {
		n.push(f.pass2);
		e.push("Your password is not the same as confirm password.  Please double check and resubmit.");
	}
	f.pass.value=hex_md5(f.pass1.value);
}

function checkUserFormGender(f,e,n)
{
	if(!f||!e||!n) return;
	if(!f.gender) return;
	if(f.gender.options[f.gender.selectedIndex].value=="") {
		n.push(f.gender);
		e.push("Please select your gender.");
	}
}

function checkUserFormDOB(f,e,n)
{
	if(!f||!e||!n) return;
	if(!f.dob_day||!f.dob_month||!f.dob_year) return;
	if(f.dob_day.options[f.dob_day.selectedIndex].value=="") {
		n.push(f.dob_day);
		e.push("Please enter your date of birth.");
	}
	else if(f.dob_month.options[f.dob_month.selectedIndex].value=="") {
		n.push(f.dob_month);
		e.push("Please enter your date of birth.");
	}
	else if(f.dob_year.options[f.dob_year.selectedIndex].value=="") {
		n.push(f.dob_year);
		e.push("Please enter your date of birth.");
	} else {
		if(getAge(f.dob_year.options[f.dob_year.selectedIndex].value,f.dob_month.options[f.dob_month.selectedIndex].value,f.dob_day.options[f.dob_day.selectedIndex].value)<13) {
			n.push(f.dob_year);
			e.push("You must be age 13 or above to continue.");
		}
	}
}

function checkUserFormLocation(f,e,n)
{
	if(!f||!e||!n) return;
	if(f.city && f.city.value=="") {
		n.push(f.city);
		e.push("Please enter a city.");
		return;
	}
	if(f.country && f.country.options[f.country.selectedIndex].value=="") {
		n.push(f.country);
		e.push("Please enter country.");
		return;
	}
	if(f.state && f.state.options[f.state.selectedIndex].value=="") {
		if(f.country.options[f.country.selectedIndex].value=="US") {
			n.push(f.state);
			e.push("Please enter a state.");
			return;
		}
	}

	if(f.postalcode && f.postalcode.value=="") {
		n.push(f.postalcode);
		e.push("Please enter a postal code.");
		return;
	}
}

function checkUserFormName(f,e,n)
{
	if(!f||!e||!n) return;
	if(f.first_name && f.first_name.value=="") {
		n.push(f.first_name);
		e.push("Please enter your first name.");
		return;
	}
	if(f.last_name && f.last_name.value=="") {
		n.push(f.last_name);
		e.push("Please enter your last name.");
		return;
	}
}

function checkUserFormUserName(f,e,n)
{
	if(!f||!e||!n) return;
	if(!f.username) return;
	if(!checkUsername(f.username.value)) {
		n.push(f.username);
		e.push('User name must be at least 2 characters containing only "A-z 0-9 - _ ( ) @ :".');
	}
}

function checkUserFormTermsPolicy(f,e,n)
{
	if(!f||!e||!n) return;
	if(!f.termspolicy) return;
	if(!f.termspolicy.checked) {
		n.push(f.termspolicy);
		e.push("Please check the box to agree to ARTISTdirect's Terms of Use & Privacy Policy to continue your registration.");
	}
}

function checkUserForm(f)
{
	if(!f) return false;
	if(!f.accountname||f.accountname.value!='') return false;

	var errors=new Array();
	var inputs=new Array();
	checkUserFormUserName(f,errors,inputs);
	checkUserFormPassword(f,errors,inputs);
	checkUserFormEmails(f,errors,inputs);
	checkUserFormName(f,errors,inputs);
	checkUserFormDOB(f,errors,inputs);
	checkUserFormGender(f,errors,inputs);
	checkUserFormLocation(f,errors,inputs);
	checkUserFormTermsPolicy(f,errors,inputs);

	errorsText=errors.join("\n");
	if( errorsText!="" ) {
		alert(errorsText);
		if(inputs.length>0) inputs[0].focus(); 
		return false
	}
	if(f.pass) f.pass1.value=''; 
	if(f.pass2) f.pass2.value='';
	//alert('Save Data!');
	return true;
}

function checkUserLoginForm() {
	var f=document.userform;
  	if( !f ) return false;
	if( !f.pass1 || !f.emailuname || !f.accountname ) {return false};
	if( f.accountname.value!='' ) {return false;}

	if( trimString(f.pass1.value)=='' || trimString(f.emailuname.value)=='' ) {
		alert( "Please enter both account user name or email address and password to login" );
		return false;
	}

	f.action='/nad/user/login/0,,login,00.html';
	f.pass.value=hex_md5(f.pass1.value);
	f.pass1.value='';
	f.submitbutton.value='Logging in...';
	f.submitbutton.disabled=true;
	return true;
}

function checkCountry()
{
  if( !document.userform ) return true; var f=document.userform;
  if( f.country ) {
  	var objus = document.getElementById('usstate');
  	var objnonus = document.getElementById('nonusregion');
  	if( typeof(objus)!='undefined' && objus && typeof(objnonus)!='undefined' && objnonus) { 
		if (f.country[f.country.selectedIndex].value=="US"||f.country[f.country.selectedIndex].value=="" ) {
			objus.style.display='block';
			objnonus.style.display='none';
		} else { 
			objus.style.display='none';
			objnonus.style.display='block';
		}
	}
  }
  return true;
}

function userFormError(m)
{
	if(m=="") {m=getParam("_msgs")}
	msgs=m.split(",");
	msgbank = new Array();
	msgbank[0]='';
	msgbank[1]='User account already exists with that email address.';
	msgbank[2]='User account already exists with that user name.';
	msgbank[3]='Please enter your birthdate to continue.';
	msgbank[4]='You must be age 13 or above to continue.';
	msgbank[5]='Please enter your birthdate to continue.';
	
	msgbank[6]='You have selected a restricted user name.';
	msgbank[7]='You have selected a restricted user name (movie artist).';
	allText=msgbank[msgs[0]];
	for(var i=1,len=msgs.length;i<len;i++) {
		allText+="\n"+msgbank[msgs[i]];
	}
	alert(allText);	
}

function checkValidDate()
{
  if( !document.userform ) return true; 
  var f=document.userform;
  if( !f.dob_month ) return true;
  if( !f.dob_day ) return true;
  if( !f.dob_year ) return true;  
  var selectedMonth = f.dob_month.selectedIndex;
  var month = f.dob_month.options[selectedMonth].value;
  var selectedDay = f.dob_day.selectedIndex;
  var day = f.dob_day.options[selectedDay].value;
  var selectedYear = f.dob_year.selectedIndex;
  var year = f.dob_year.options[selectedYear].value;
  if( day=="" || month=="" || year=="" ) return true;
  var isLeapYear = false;
  if( ((year % 4) == 0 && (year % 100) != 0) || (year%400) == 0 ) isLeapYear = true;
  if( month == "02"  && isLeapYear && selectedDay > 29 )
  { f.dob_day.selectedIndex = 29; return true; }
  if( month == "02"  && !isLeapYear && selectedDay > 28 )
  { f.dob_day.selectedIndex = 28; return true; }
  if( (selectedMonth == 4 || selectedMonth == 6 || selectedMonth == 9 || selectedMonth == 11) && selectedDay > 30 )
  { f.dob_day.selectedIndex = 30; return true; }
  return true;
}

function getAge(uY, uM, uD) {
	udate = new Date();
	uday = udate.getDate();
	umonth = udate.getMonth()+1;
	uyear=udate.getFullYear();
	
	age = uyear-uY;
	if(umonth < uM) {
		age--;
	} else if (umonth == uM) {
		if(uday < uD) { age--; }
	}
	return age;
}

function editComment(id) {
	objid="comment_"+id;
	commentdiv=document.getElementById(objid);
	if(!commentdiv) return;
	if( !commentdiv.editing ) {
	commentdiv.editing=commentdiv.innerHTML;
	tempHTML='<form method="post" action="/nad/user/edit/comment">';
	tempHTML+='<textarea name="comment_text">'+commentdiv.editing.replace(/<br>/ig,'\n')+'</textarea>';
	tempHTML+='<br clear="all" /><input type="submit" name="dosave" value="Save">';
	tempHTML+='<input type="hidden" name="comment_id" value="'+id+'"><button onclick="editComment('+id+'); return false;">Cancel</button>';
	tempHTML+='</form>';
	commentdiv.innerHTML=tempHTML;
	} else {
	commentdiv.innerHTML=commentdiv.editing;
	commentdiv.editing=0;
	}
	return false;
}

function showPreviewSizes() {
	if(!previewPic||!previewBox) return;
	var sizes = {"Large":200, "Medium":100,"Small":50};
	tempHTML='Original image dimension (WxH): '+previewPic.width+' x '+previewPic.height+'<br/>';
	for (var size in sizes) {
		thisWidth=(previewPic.width > sizes[size])? sizes[size]:previewPic.width;
		tempHTML+='<div>'+size+'<br><div><img src="'+previewPic.src+'" width="'+thisWidth+'"></div></div>';
	}
	previewBox.innerHTML=tempHTML;
}

previewPic=null;
previewBox=null;
function previewSizes(url,box) {
	if(!document.images) return false;
	previewBox=document.getElementById(box); if(!previewBox) return false;
	urlObj=document.getElementById(url); if(!urlObj||!urlObj.value) return false;

	previewBox.innerHTML='<img src="/Images/nad/gui/waitloading.gif">';
	url=urlObj.value;

	previewPic=new Image();
	previewPic.src=url;
	previewPic.onerror=function (e) {
		if(previewBox) {previewBox.innerHTML='';}
		alert('Error loading image, please double check the URL and try again.');
	};
	if(previewPic.readyState=="complete") {
		setTimeout('showPreviewSizes();',600);
	} else {
		previewPic.onload=function (e) {setTimeout('showPreviewSizes();',600);};
	}
}

function previewFav(ahref,url,box) {
	if(!ahref) return false;
	urlobj=document.getElementById(url);
	if(!urlobj||typeof(urlobj.value)=='undefined') return false;

	favImg=ahref.getElementsByTagName("IMG");
	if(!favImg||favImg.length==0) return false;
	favImg=favImg[0];
	urlobj.value=favImg.src;
	previewSizes(url,box);
	return true;
}

function submitPreviewPic(form) {
	if(!previewPic||(previewPic&&previewPic.src!=form.exturl.value)) {
		previewPic=new Image();
		previewPic.src=form.exturl.value;
		previewPic.onerror=function (e) {
			if(previewBox) {previewBox.innerHTML='';}
			alert('Error loading image, please double check and try again.');
		};
		if(previewPic.readyState=="complete") {
			submitPreviewPic(form); form.submit(); return true;
		} else {
			previewPic.onload=function (e) {
				submitPreviewPic(form); form.submit();
			};
		}
		return false;
	}
	form.previewPicWidth.value=previewPic.width;
	form.previewPicHeight.value=previewPic.height;
	return true;
}



/*
 * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 */
var hexcase = 0;  /* hex output format. 0 - lowercase; 1 - uppercase  */
var chrsz   = 8;  /* bits per input character. 8 - ASCII; 16 - Unicode */
function hex_md5(s) { return binl2hex(core_md5(str2binl(s), s.length * chrsz)); }
function core_md5(x, len)
{
  x[len >> 5] |= 0x80 << ((len) % 32);
  x[(((len + 64) >>> 9) << 4) + 14] = len;
  var a =  1732584193;
  var b = -271733879;
  var c = -1732584194;
  var d =  271733878;
  for(var i = 0; i < x.length; i += 16)
  {
    var olda = a;
    var oldb = b;
    var oldc = c;
    var oldd = d;
    a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
    d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
    c = md5_ff(c, d, a, b, x[i+ 2], 17,  606105819);
    b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
    a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
    d = md5_ff(d, a, b, c, x[i+ 5], 12,  1200080426);
    c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
    b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
    a = md5_ff(a, b, c, d, x[i+ 8], 7 ,  1770035416);
    d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
    c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
    b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
    a = md5_ff(a, b, c, d, x[i+12], 7 ,  1804603682);
    d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
    c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
    b = md5_ff(b, c, d, a, x[i+15], 22,  1236535329);

    a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
    d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
    c = md5_gg(c, d, a, b, x[i+11], 14,  643717713);
    b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
    a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
    d = md5_gg(d, a, b, c, x[i+10], 9 ,  38016083);
    c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
    b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
    a = md5_gg(a, b, c, d, x[i+ 9], 5 ,  568446438);
    d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
    c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
    b = md5_gg(b, c, d, a, x[i+ 8], 20,  1163531501);
    a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
    d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
    c = md5_gg(c, d, a, b, x[i+ 7], 14,  1735328473);
    b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);
    a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
    d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
    c = md5_hh(c, d, a, b, x[i+11], 16,  1839030562);
    b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
    a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
    d = md5_hh(d, a, b, c, x[i+ 4], 11,  1272893353);
    c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
    b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
    a = md5_hh(a, b, c, d, x[i+13], 4 ,  681279174);
    d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
    c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
    b = md5_hh(b, c, d, a, x[i+ 6], 23,  76029189);
    a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
    d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
    c = md5_hh(c, d, a, b, x[i+15], 16,  530742520);
    b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);
    a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
    d = md5_ii(d, a, b, c, x[i+ 7], 10,  1126891415);
    c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
    b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
    a = md5_ii(a, b, c, d, x[i+12], 6 ,  1700485571);
    d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
    c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
    b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
    a = md5_ii(a, b, c, d, x[i+ 8], 6 ,  1873313359);
    d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
    c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
    b = md5_ii(b, c, d, a, x[i+13], 21,  1309151649);
    a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
    d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
    c = md5_ii(c, d, a, b, x[i+ 2], 15,  718787259);
    b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);
    a = safe_add(a, olda);
    b = safe_add(b, oldb);
    c = safe_add(c, oldc);
    d = safe_add(d, oldd);
  }
  return Array(a, b, c, d);
}
function md5_cmn(q, a, b, x, s, t) { return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b); }
function md5_ff(a, b, c, d, x, s, t) { return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t); }
function md5_gg(a, b, c, d, x, s, t) { return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t); }
function md5_hh(a, b, c, d, x, s, t) { return md5_cmn(b ^ c ^ d, a, b, x, s, t); }
function md5_ii(a, b, c, d, x, s, t) { return md5_cmn(c ^ (b | (~d)), a, b, x, s, t); }
function safe_add(x, y)
{
  var lsw = (x & 0xFFFF) + (y & 0xFFFF);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return (msw << 16) | (lsw & 0xFFFF);
}
function bit_rol(num, cnt) { return (num << cnt) | (num >>> (32 - cnt));}
function str2binl(str)
{
  var bin = Array();
  var mask = (1 << chrsz) - 1;
  for(var i = 0; i < str.length * chrsz; i += chrsz)
    bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32);
  return bin;
}
function binl2hex(binarray)
{
  var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
  var str = "";
  for(var i = 0; i < binarray.length * 4; i++)
  {
    str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) +
           hex_tab.charAt((binarray[i>>2] >> ((i%4)*8  )) & 0xF);
  }
  return str;
}