// File: form_validation.js
// Description: Generic client-side form validation script
// Site: 
// Version "Major.Minor.DDMMYY.Build":
//  1.0.060301.1: Support routing no validation
//	1.0.060124.1: Support OR'd sLen params
//  1.0.011006.1

// Declaring valid date character, minimum year and maximum year
var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isStringvalid(sStr)
{
	var fPass = true;
	var filters = new Array("Disability Benefits","S.S.B.","S S B","Benefit","Benifit","Benifits","Beniifit","Beniifits","Em Enterprises","S S R","Ssi","benefits","Bebefits","Social Security","S S I","S SR","S.s.r","Social Securities","Sec Benefits","Social Security Benefits","Charles","Karlos","Marcuss","Corp","Ssn","Employee","Ssi Benifits","State Of California")
	for (var i = 0; i < filters.length; i++)
	{
		if(sStr.toLowerCase() == filters[i].toLowerCase())
		{
			fPass = false;
			break;
		}
	}
	return fPass;
}

function isValidStr(sStr, sLen, sType)
{
	// Check length
	sArray = sLen.split("|");
	var bPass = false;
	for(var i = 0; i < sArray.length; i++) {
		
		if((eval("sStr.length " + sArray[i]))) {
			bPass = true;
			break;
		}
	}
	if(!bPass)
		return false;
		
	switch (sType) {
		case "CHAR_NO_WS" : // No White Space
			var pattern = /^[a-zA-Z][a-zA-Z\-\.]+$/i;
			return pattern.test(sStr);
		case "NUM_NO_WS" :
			var pattern = /^\d+$/i;
			return pattern.test(sStr);
		case "NUM_NO_WS_ZLEN" :
			var pattern = /^\d*$/i;
			return pattern.test(sStr);
		case "ALPHANUM_NO_WS" :
			var pattern = /^[a-zA-Z0-9][a-zA-Z0-9\-\.]+$/i;
			return pattern.test(sStr);
		case "ALPHANUM_NO_WS_ZLEN" : // Zero length
			var pattern = /^([a-zA-Z0-9][a-zA-Z0-9\-\.])*$/i;
			return pattern.test(sStr);		
		case "CHAR_WS" :
			var pattern = /^[a-zA-Z][a-zA-Z\-\. ]*$/i;
			return pattern.test(sStr);
		case "ALPHANUM_WS" :
			var pattern = /^[a-zA-Z0-9][a-zA-Z0-9\-\. ]*$/i;
			return pattern.test(sStr);
		case "ALPHANUM_WS_ZLEN" : // Zero length
			var pattern = /^(([a-zA-Z0-9][a-zA-Z0-9\-\.])*|[a-zA-Z0-9][a-zA-Z0-9\-\. ]*)$/i;
			return pattern.test(sStr);		
		case "EMAIL" :
			var pattern = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
			return pattern.test(sStr);
		case "DATE" :
			return isDate(sStr);
		default:
			alert("Error: could be unrecognized sType");
	}
	
	return true; // Passed all tests
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year)
{
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}

function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this;
}

function isDate(dtStr){
	if(dtStr.length == 0) return false;
	
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strMonth=dtStr.substring(0,pos1)
	var strDay=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month = parseInt(strMonth)
	day = parseInt(strDay)
	year = parseInt(strYr)
	if (pos1==-1 || pos2==-1 || strMonth.length<1 || month<1 || month>12 ||
			strDay.length<1 || day<1 || day>31 || 
			(month==2 && day>daysInFebruary(year)) || day > daysInMonth[month] ||
			strYear.length != 4 || year==0 || year<minYear || year>maxYear ||
			dtStr.indexOf(dtCh,pos2+1)!=-1 || 
			isInteger(stripCharsInBag(dtStr, dtCh))==false){
		return false
	}
	return true
}

function isInteger(s)
{   
    for (i = 0; i < s.length; i++) {   
        var c = s.charAt(i);
        if (!isDigit(c)) return false;
    }

    return true;
}

function isDigit(c)
{   
	return ((c >= "0") && (c <= "9"))
}

function isValidABA(s) {
    n = 0;
   
    for (i = 0; i < s.length; i += 3) {
        n += parseInt(s.charAt(i),     10) * 3
          +  parseInt(s.charAt(i + 1), 10) * 7
          +  parseInt(s.charAt(i + 2), 10);
    }

    if (n != 0 && n % 10 == 0)
        return true;
    else
        return false;
}