/*
standard client-side library functions
© swingin'sam.designs.com  |  http://www.swinginsam.com
*/

TRACER    = true;

function browser_detect() {
  if($.browser.msie) {
    $("html").addClass("ie");
    $("html").addClass("not-ios"); 
    $browser = 'ie';
  } else if($.browser.mozilla) {
    $("html").addClass("mozilla");
    $("html").addClass("not-ios"); 
    $browser = 'moz';
  } else if($.browser.opera) {
    $("html").addClass("opera");
    $("html").addClass("not-ios"); 
    $browser = 'opera';
  } else if($.browser.webkit) {
    var deviceAgent     = navigator.userAgent.toLowerCase();
    if(deviceAgent.match(/(iphone|ipod|ipad)/)) { $("html").addClass("ios"); $browser = 'ios'; }
    if(!deviceAgent.match(/(iphone|ipod|ipad)/)) { $("html").addClass("not-ios"); $browser = 'webkit'; }
    $("html").addClass("webkit");
  }
}

function in_array(needle,haystack,argStrict) {
  var key = '',strict = !! argStrict;
  if(strict) {
    for(key in haystack) {
      if (haystack[key] === needle) {
        return true;
      }
    }
  } else {
    for (key in haystack) {
      if (haystack[key] == needle) {
        return true;
      }
    }
  }
  return false;
}

function isUndef(val) {
  isValid = false;
  if(val+"" == void(0)) { isValid = true; }
  return isValid;
}

function isNull(val) {
  isValid = false;
  if(val+"" == "null") { isValid = true; }
  return isValid;
}

function isBlank(str) {
  isValid = false;
  if(isNull(str) || isUndef(str) || (str+"" == "")) { isValid = true; }
  return isValid;
}

function isValidEmail(str) {
   var isValid = true;
   str += "";
   namestr = str.substring(0, str.indexOf("@"));              // everything before the '@'
   domainstr = str.substring(str.indexOf("@")+1, str.length); // everything after the '@'
   // Rules: namestr cannot be empty, or that would indicate no characters before the '@', domainstr must contain a period that is not the first character (i.e. right after the '@').  The last character must be an alpha.
   if ((namestr.length == 0) || (domainstr.indexOf(".") <= 0)  || (str.indexOf("'") != -1) || (str.indexOf("@") == -1) || (domainstr.indexOf("@") != -1) || (!isAlpha(str.charAt(str.length-1)))) {
     isValid = false;
   }
   return isValid;
}

function isValidTel(str) {
   var isValid = true;
   str += "";
   prefixstr = str.substring(0, str.indexOf("-"));              // everything before the  '-'
   numberstr = str.substring(str.indexOf("-")+1, str.length);   // everything after the '-'
   // Rules:     prefixstr must be numbers and must be length 3, 
   //            '-' must be in position 4,
   //            numberstr must be all numbers and must be length 7.
   if ((prefixstr.length != 3) || (!isInt(prefixstr,false))  || (str.indexOf("'") != -1) || (str.indexOf("-") != 3) || (numberstr.length != 7) || (!isInt(numberstr,false))) {
     isValid = false;
   }
   return isValid;
}

function isValidPostcode(str) {
   var isValid = true;
   str += "";
   // str must be all numbers and must be length 5.
   if ((str.length != 5) || (!isInt(str,false))  || (str.indexOf("'") != -1)) {
     isValid = false;
   }
   return isValid;
}

function isAlpha(str) {
  if(str+"" == void(0) || str+"" == "null" || str+"" == "") { return false; }
  var isValid = true;
  // convert to a string for performing string comparisons.
  str += "";
  for (i=0; i<str.length; i++) {
    if(!(((str.charAt(i) >= "a") && (str.charAt(i) <= "z")) || ((str.charAt(i) >= "A") && (str.charAt(i) <= "Z")) || ((str.charAt(i) == "-")))) {
      isValid = false;
      break;
    }
  }
  return isValid;
}

function isInt(numstr, allowNegatives) {
  if(numstr+"" == void(0) || numstr+"" == "null" || numstr+"" == "") { return false; }
  // Default allowNegatives to true when undefined or null
  if (allowNegatives+"" == void(0) || allowNegatives+"" == "null") { allowNegatives = true; }
  var isValid = true;
  // convert to a string for performing string comparisons.
  numstr += "";
  for(i=0; i<numstr.length; i++) {
    if(!((numstr.charAt(i) >= "0") && (numstr.charAt(i) <= "9") || (numstr.charAt(i) == "-"))) {
      isValid = false;
      break;
    } else {
      if((numstr.charAt(i) == "-" && i != 0) || (numstr.charAt(i) == "-" && !allowNegatives)) {
        isValid = false;
        break;
      }
    }
  }
  return isValid;
}

function isNum(numstr) {
  // return immediately if an invalid value was passed in
  if(numstr+"" == void(0) || numstr+"" == "null" || numstr+"" == "") { return false; }
  var isValid = true;
  var decCount = 0; // number of decimal points in the string
  // convert to a string for performing string comparisons.
  numstr += "";
  // Loop through string and test each character. If any character is not a number, return a false result.
  // Include special cases for negative numbers (first char == '-') and a single decimal point (any one char in string == '.').
  for (i=0; i<numstr.length; i++) {
    if(numstr.charAt(i) == ".") { decCount++; }
    if(!((numstr.charAt(i) >= "0") && (numstr.charAt(i) <= "9") || (numstr.charAt(i) == "-") || (numstr.charAt(i) == "."))) {
      isValid = false;
      break;
    } else {
      if ((numstr.charAt(i) == "-" && i != 0) ||
          (numstr.charAt(i) == "." && numstr.length == 1) ||
          (numstr.charAt(i) == "." && decCount > 1)) {
        isValid = false;
        break;
      }
    }
  }
  return isValid;
}

function validate_mandatory(field,val) {
  trace(field + ' -> ' + val);
  status = true;
  if( isBlank(val) || isNull(val) ) { set_err(field,field,'This is a mandatory field'); status = false; }
  return status;
}

function formatNum(str) {
  if(!isBlank(str) && str.substring(0,1) != '0') {
    if(str <= 9 && str >=0) {
      return '0' + str;
    } else {
      return str;
    }
  } else {
    return str;
  }
}

function trace(msg) {
  if(TRACER) {
    if(typeof window.console != 'undefined') { 
      console.log(msg);
    } else {
      //alert(msg);
    }
  }
}

function get_hash() {
  return window.location.hash.substr(1,window.location.hash.length);
}

function get_page() {
  len = PATH.length;
  return window.location.pathname.substr(len,window.location.pathname.indexOf('.php')-1);
}

function get_search() {
  var pagevars      = window.location.hash.substr(window.location.hash.indexOf('?'),window.location.hash.length);
  if(isBlank(pagevars) || pagevars == 'p') {
    var pagevars    = window.location.search;
  }
  return pagevars;
}

function score_pw(pw,primary,secondary,metre,fb_node,mode) { //password score
  clear_err();
  var p_ui          = 'new_password';
  var p_v_ui        = 'new_password_v';
  var $pass         = $("#"+primary);
  var $ver          = $("#"+secondary);
  var intScore      = 0;
  var maxScore      = 100;
  var fb            = '<p>&nbsp;';
  var pass_status   = 0;
  var passV_status  = 0;
  var scale         = 200; // (this should match the css width value of .stat_bar )
  if(mode == 'str') {
    // Length test...
    if ($pass.val().length<7) { // length 6 or fewer
      fb += 'Your password contains too few characters - between 7 and 12 are required';
    } else if ($pass.val().length>6 && $pass.val().length<9) { // length 7,8
      intScore = (intScore+10);
      pass_status = 1;
    } else if ($pass.val().length>8 && $pass.val().length<11) { // length 9,10
      intScore = (intScore+20);
      pass_status = 1;
    } else if ($pass.val().length>10 && $pass.val().length<13) { // length 11,12
      intScore = (intScore+30);
      pass_status = 1;
    } else if ($pass.val().length>12) { // length 13 or more
      fb += 'Your password contains too many characters - between 7 and 12 are required';
    }
    // test for at least two capitols...
    if ($pass.val().match(/(.*[A-Z].*[A-Z])/)) { // [verified] at least two capitols
      intScore = (intScore+10);
    }
    // test for at least two numbers...
    if ($pass.val().match(/(.*\d.*\d)/)) { // [verified] at least two numbers
      intScore = (intScore+10);
    }
    // test for special chars...
    if ($pass.val().match(/.[!,@,#,$,%,^,&,*,?,_,~,\[,\],\{,\}]/)) { // [verified] at least one special character
      intScore = (intScore+10);
    }
    // test for upper / lower combos...
    if ($pass.val().match(/([a-z].*[A-Z])|([A-Z].*[a-z])/)) { // [verified] both upper and lower case {
      intScore = (intScore+20);
    }
    // test for letter number combos...
    if ($pass.val().match(/([a-zA-Z])/) && $pass.val().match(/([0-9])/)) { // [verified] both letters and numbers
      intScore = (intScore+20);
    }
    if ($pass.val() != $ver.val()) {
      $ver.css( {'border':'1px solid #f00'} );
    } else {
      $ver.css( {'border':'1px solid #0f0'} );
      passV_status  = 1;
    }
    $("#"+p_v_ui+"_status").val(passV_status);
    fb += "</p>";
    $("#"+fb_node).html(fb);
    $("#"+metre).html(barstat(scale,'Strength',intScore,'/'+maxScore));
    $("#"+p_ui+"_status").val(pass_status);
  } else if(mode == 'ver') {
    if ($pass.val() != $ver.val()) {
      $ver.css( {'border':'1px solid #f00'} );
    } else {
      $ver.css( {'border':'1px solid #0f0'} );
      passV_status  = 1;
    }
    $("#"+p_v_ui+"_status").val(passV_status);
  } else if(mode == 'init') {
    $("#"+metre).html(barstat(scale,'Strength',pw,'/'+maxScore));
  }
}

function set_err(target,foc,msg) {
  $obj = $("#"+target);
  $obj_fb = $("#"+target+"_fb");
  $obj_fb.text(msg).fadeIn(300);
  if(foc) {$("#"+foc).focus();}
}

function set_warn(target,msg) {
  $obj = $("#"+target);
  $obj_fb = $("#"+target+"_fb");
  $obj_fb.text(msg).fadeIn(300);
}

function clear_err(target) {
  if(!target || target == '') {
    $(".fb").html('&nbsp;');
  } else {
    $("#"+target+'_fb').html('&nbsp;');
  }
  
}

function formulate_array(inp) {
  var data = new Array();
  for(key in inp) {
    data[inp[key].name]   = inp[key].value;
    //console.log(inp[key].name + ' -> ' + inp[key].value);
  }
  return data;
}

function barstat(scale,title,val,unit) {
  $rgb = '#fff';
  if(val<24) {
    $rgb = '#c20002';
  } else if(val>=25&&val<=49) {
    $rgb = '#ff8000';
  } else if(val>=50&&val<=74) {
    $rgb = '#ccff66';
  } else if(val>75) {
    $rgb = '#5cb504';
  }
  var $scl  = (scale/100);
  var bar   = ((val*$scl)-2);
  if(val == 0) { bar = 1; }
  return "<div id=\"stat_"+title.replace(' ','_')+"\" class=\"barstat\"><span class=\"stat_title\">"+title+"&nbsp;&raquo;&nbsp;</span><div class=\"stat_bar\"><span style=\"display:block; margin:2px 1px; height:10px; width:"+bar+"px; background:"+$rgb+"\" alt=\""+title+"\" /></div><span class=\"stat_value\">"+val+' '+unit+"</span><div class=\"clear\"></div></div>";
}

function clean(str) {
  if(str.charAt(0) == ' ') {
    str = str.substring(1,str.length+1);
  }
  if(str.charAt(str.length-1) == ' ') {
    str = str.substring(0,str.length-1);
  }
  str   = str.replace(' ','%20');
  return str;
}

function count_chars(target,lim) {
  var txt             = $("#"+target).val();
  var cur_chars       = txt.length;
  var $cntr           = $("#"+target+"_count");
  
  if(cur_chars >= lim) {
    $("#"+target).val( txt.substring(0,lim) );
    $cntr.html('<p class=\"red\">' + lim + ' / ' + lim + ' characters</p>');
  } else {
    $cntr.html('<p>' + cur_chars + ' / ' + lim + ' characters</p>');
  }
}

function jump(URL) {
  window.location = URL;
}

function ucfirst(str) {
  var ret = str.substr(0,1).toUpperCase() + str.substr(1);
  return ret;
}

function encode(num) {
  var hash = md5(num);
  var hack = '0' + hash.substring( 0,(hash.length - num.length) ) + num + ':' + num.length;
  return hack;
}

function format_avatar(ava) {
  //trace('format avatar => ' + ava);
  if(ava.substring(0,8) == 'default_') {
    return '_avatars/'+ava;
  } else {
    return '_uploads/avatar_'+ava;
  }
}

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();
}