function syn_vrgndr(e, s)
{
	var elem = document.getElementById(e);
	if(s) 
	{
		elem.style.display = 'block';
	} 
	else 
	{
		elem.style.display = 'none';
	}
}
function syn_vtbx(args)
{
	if(args.y == undefined || args.m == undefined || args.d == undefined) return false;

	var ny = document.getElementById(args.y).value;
	var nm = document.getElementById(args.m).value;
	var nd = document.getElementById(args.d).value;
	
	if(ny.indexOf("0") == 0) ny=ny.substr(1);
	if(nm.indexOf("0") == 0) nm=nm.substr(1);
	if(nd.indexOf("0") == 0) nd=nd.substr(1);

	ny = parseInt(ny);
	nm = parseInt(nm);
	nd = parseInt(nd);

	if(isNaN(ny) || isNaN(nm) || isNaN(nd)) 
	{
		return false;
	}
	STARTYEAR=1920;
	ENDYEAR=date("Y")-16;
	if(nd <= 1 || nd > 31) return false;
	
	if(nm < 1 || nm > 12) return false;
	if(nm == 2)
	{
		nd = (ny % 4 == 0 ? 29 : 28);
	}
	else
	{
		nd = (in_array(nm, array(1,3,7,9,11)) ? 31 : 30);
	}
	if(ny < STARTYEAR || ny >ENDYEAR) return false;
	
	return true;
}
function syn_eior(args)
{
	if(args.mo == 'undefined' || (args.m == 'undefined' || args.n == 'undefined')) return false;
	var i1 = args.mo;
	var i2 = args.m;
	var i3 = args.n
	result = true;
	if(document.getElementById(i3).checked == true)
	{
		result = true;
	} 
	else 
	{
		if(!document.getElementById(i1) && !document.getElementById(i2)) result = false;
		if(document.getElementById(i1).value == '' && document.getElementById(i2).value == '')
		{
			 result = false;
		} else {	
			result = true;
		}
	}
	return result;
}

function show_selected(args)
{
	if(document.getElementById('not_on_list').checked == true) 
	{
		document.getElementById('mobile_list').disabled = "disabled";
		document.getElementById('models_list').disabled = "disabled";
	} 
	else
	{
		document.getElementById('mobile_list').disabled = false;
		document.getElementById('models_list').disabled = false;
	}
}

String.prototype.strReverse = function() {
	var newstring = "";
	for (var s=0; s < this.length; s++) {
		newstring = this.charAt(s) + newstring;
	}
	return newstring;
};

function syn_chkPass(pwd, sbar, scr, cmplx) {
	var oScorebar = document.getElementById('scorebar');
	var oScore = document.getElementById('score');
	var oComplexity = document.getElementById('complexity');
	var nScore = 0;
	var nLength = 0;
	var nAlphaUC = 0;
	var nAlphaLC = 0;
	var nNumber = 0;
	var nSymbol = 0;
	var nMidChar = 0;
	var nRequirements = 0;
	var nAlphasOnly = 0;
	var nNumbersOnly = 0;
	var nRepChar = 0;
	var nConsecAlphaUC = 0;
	var nConsecAlphaLC = 0;
	var nConsecNumber = 0;
	var nConsecSymbol = 0;
	var nConsecCharType = 0;
	var nSeqAlpha = 0;
	var nSeqNumber = 0;
	var nSeqChar = 0;
	var nReqChar = 0;
	var nReqCharType = 3;
	var nMultLength = 4;
	var nMultAlphaUC = 3;
	var nMultAlphaLC = 3;
	var nMultNumber = 4;
	var nMultSymbol = 6;
	var nMultMidChar = 2;
	var nMultRequirements = 2;
	var nMultRepChar = 1;
	var nMultConsecAlphaUC = 2;
	var nMultConsecAlphaLC = 2;
	var nMultConsecNumber = 2;
	var nMultConsecSymbol = 1;
	var nMultConsecCharType = 0;
	var nMultSeqAlpha = 3;
	var nMultSeqNumber = 3;
	var nTmpAlphaUC = "";
	var nTmpAlphaLC = "";
	var nTmpNumber = "";
	var nTmpSymbol = "";

	var sAlphas = "abcdefghijklmnopqrstuvwxyz";
	var sNumerics = "01234567890";
	var sComplexity = "Too Short";
	var sStandards = "Below";
	var nMinPwdLen = 8;
	if (document.all) { var nd = 0; } else { var nd = 1; }
	if (pwd) {
		document.getElementById('scorebarBorder').style.display = "";
		document.getElementById('complexity').style.display = "";
		nScore = parseInt(pwd.length * nMultLength);
		nLength = pwd.length;
		var arrPwd = pwd.replace (/\s+/g,"").split(/\s*/);
		var arrPwdLen = arrPwd.length;
		
		/* Loop through password to check for Symbol, Numeric, Lowercase and Uppercase pattern matches */
		for (var a=0; a < arrPwdLen; a++) {
			if (arrPwd[a].match(new RegExp(/[A-Z]/g))) {
				if (nTmpAlphaUC !== "") { if ((nTmpAlphaUC + 1) == a) { nConsecAlphaUC++; nConsecCharType++; } }
				nTmpAlphaUC = a;
				nAlphaUC++;
			}
			else if (arrPwd[a].match(new RegExp(/[a-z]/g))) { 
				if (nTmpAlphaLC !== "") { if ((nTmpAlphaLC + 1) == a) { nConsecAlphaLC++; nConsecCharType++; } }
				nTmpAlphaLC = a;
				nAlphaLC++;
			}
			else if (arrPwd[a].match(new RegExp(/[0-9]/g))) { 
				if (a > 0 && a < (arrPwdLen - 1)) { nMidChar++; }
				if (nTmpNumber !== "") { if ((nTmpNumber + 1) == a) { nConsecNumber++; nConsecCharType++; } }
				nTmpNumber = a;
				nNumber++;
			}
			else if (arrPwd[a].match(new RegExp(/[^a-zA-Z0-9_]/g))) { 
				if (a > 0 && a < (arrPwdLen - 1)) { nMidChar++; }
				if (nTmpSymbol !== "") { if ((nTmpSymbol + 1) == a) { nConsecSymbol++; nConsecCharType++; } }
				nTmpSymbol = a;
				nSymbol++;
			}
			/* Internal loop through password to check for repeated characters */
			for (var b=0; b < arrPwdLen; b++) {
				if (arrPwd[a].toLowerCase() == arrPwd[b].toLowerCase() && a != b) { nRepChar++; }
			}
		}
		
		/* Check for sequential alpha string patterns (forward and reverse) */
		for (var s=0; s < 23; s++) {
			var sFwd = sAlphas.substring(s,parseInt(s+3));
			var sRev = sFwd.strReverse();
			if (pwd.toLowerCase().indexOf(sFwd) != -1 || pwd.toLowerCase().indexOf(sRev) != -1) { nSeqAlpha++; nSeqChar++;}
		}
		
		/* Check for sequential numeric string patterns (forward and reverse) */
		for (var s=0; s < 8; s++) {
			var sFwd = sNumerics.substring(s,parseInt(s+3));
			var sRev = sFwd.strReverse();
			if (pwd.toLowerCase().indexOf(sFwd) != -1 || pwd.toLowerCase().indexOf(sRev) != -1) { nSeqNumber++; nSeqChar++;}
		}
		
	/* Modify overall score value based on usage vs requirements */

		/* General point assignment */
		if (nAlphaUC > 0 && nAlphaUC < nLength) {	
			nScore = parseInt(nScore + ((nLength - nAlphaUC) * 2));
		}
		if (nAlphaLC > 0 && nAlphaLC < nLength) {	
			nScore = parseInt(nScore + ((nLength - nAlphaLC) * 2)); 
		}
		if (nNumber > 0 && nNumber < nLength) {	
			nScore = parseInt(nScore + (nNumber * nMultNumber));
		}
		if (nSymbol > 0) {	
			nScore = parseInt(nScore + (nSymbol * nMultSymbol));
		}
		if (nMidChar > 0) {	
			nScore = parseInt(nScore + (nMidChar * nMultMidChar));
		}
	
		/* Point deductions for poor practices */
		if ((nAlphaLC > 0 || nAlphaUC > 0) && nSymbol === 0 && nNumber === 0) {  // Only Letters
			nScore = parseInt(nScore - nLength);
			nAlphasOnly = nLength;
		}
		if (nAlphaLC === 0 && nAlphaUC === 0 && nSymbol === 0 && nNumber > 0) {  // Only Numbers
			nScore = parseInt(nScore - nLength); 
			nNumbersOnly = nLength;
		}
		if (nRepChar > 0) {  // Same character exists more than once
			nScore = parseInt(nScore - (nRepChar * nRepChar));
		}
		if (nConsecAlphaUC > 0) {  // Consecutive Uppercase Letters exist
			nScore = parseInt(nScore - (nConsecAlphaUC * nMultConsecAlphaUC)); 
		}
		if (nConsecAlphaLC > 0) {  // Consecutive Lowercase Letters exist
			nScore = parseInt(nScore - (nConsecAlphaLC * nMultConsecAlphaLC)); 
		}
		if (nConsecNumber > 0) {  // Consecutive Numbers exist
			nScore = parseInt(nScore - (nConsecNumber * nMultConsecNumber));  
		}
		if (nSeqAlpha > 0) {  // Sequential alpha strings exist (3 characters or more)
			nScore = parseInt(nScore - (nSeqAlpha * nMultSeqAlpha)); 
		}
		if (nSeqNumber > 0) {  // Sequential numeric strings exist (3 characters or more)
			nScore = parseInt(nScore - (nSeqNumber * nMultSeqNumber)); 
		}

		nRequirements = nReqChar;
		if (pwd.length >= nMinPwdLen) { var nMinReqChars = 3; } else { var nMinReqChars = 4; }
		if (nRequirements > nMinReqChars) {  // One or more required characters exist
			nScore = parseInt(nScore + (nRequirements * 2)); 
		}

		/* Determine complexity based on overall score */
		if (nScore > 100) { nScore = 100; } else if (nScore < 0) { nScore = 0; }
		if (nScore >= 0 && nScore < 20) { sComplexity = "Very Weak"; }
		else if (nScore >= 20 && nScore < 40) { sComplexity = "Weak"; }
		else if (nScore >= 40 && nScore < 60) { sComplexity = "Good"; }
		else if (nScore >= 60 && nScore < 80) { sComplexity = "Strong"; }
		else if (nScore >= 80 && nScore <= 100) { sComplexity = "Very Strong"; }
		if(nScore >= 90) {
			oScore.style.color = "#FFF";
		} else {
			oScore.style.color = "#000";
		}
		
		/* Display updated score criteria to client */
		oScorebar.style.backgroundPosition = "-" + parseInt(nScore * 4) + "px";
		oScore.innerHTML = nScore + "%";
		oComplexity.innerHTML = sComplexity;
	}
	else {
		/* Display default score criteria to client */
		document.getElementById('scorebarBorder').style.display = "none";
		document.getElementById('complexity').style.display = "none";
		oScorebar.style.backgroundPosition = "0";
		oScore.innerHTML = nScore + "%";
		oComplexity.innerHTML = sComplexity;
	}
}

function addLoadEvent() {
	var oldonload = window.onload;
	window.onload = function() {
		if (oldonload) {
			oldonload();
		}
		document.getElementById('scorebarBorder').style.display = "none";
		document.getElementById('complexity').style.display = "none";
		document.getElementById('scorebar').style.backgroundPosition = "0";
	};
}
addLoadEvent();