// JavaScript Document

function checkForValidEmail(email){
	
	bValidEmail = false;
	
	try{
		bValidEmail = !(!email.match(/^\w+([.\+\-]\w+)*@\w+([.\-]\w+)+$/))
	}
	catch(e){}
	
	return bValidEmail;
	
}



// replaceType: 0:alphanumeric no-case
//              1:numeric
//              2:alpha no-case
//              3:alpha lower
//              4:alpha upper
// 				5:alphanumeric no-case with special char
// 				6:numeric with special char
var validCharUpperList = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
var validCharLowerList = "abcdefghijklmnopqrstuvwxyz";
var validNumberList = "0123456789";
var validPhoneNumberList = "0123456789+- .";
var validSpecialCharList = "@._-";
var validSpaceToList = " ";
var validDateList = "0123456789/";
var validDelimToList = "\",'";
var validExtrasToList = ",;:()";


function cleanInputString(theInput,replaceType){
	var validList = "";
	var returnVar = "";
	switch(replaceType){
		case 0: validList = validNumberList + validCharLowerList + validCharUpperList; break;
		case 1: validList = validNumberList; break;
		case 2: validList = validCharLowerList + validCharUpperList; break;
		case 3: validList = validCharLowerList; break;
		case 4: validList = validCharUpperList; break;
		case 5: validList = validNumberList + validCharLowerList + validCharUpperList + validSpecialCharList; break;
		case 6: validList = validNumberList + validCharLowerList + validCharUpperList + validSpaceToList; break;
		case 7: validList = validNumberList + validCharLowerList + validCharUpperList + validSpecialCharList + validSpaceToList; break;
		case 8: validList = validNumberList + "-"; break;
		case 9: validList = validPhoneNumberList; break;
		case 10: validList = validDateList; break;
		case 11: validList = validNumberList + validCharLowerList + validCharUpperList + validSpecialCharList + validSpaceToList + validDelimToList + validExtrasToList; break;
		
	}
	try{
		for (i = 0; i < theInput.length; i++){
			if (validList.indexOf(theInput.charAt(i)) != -1){
				returnVar += theInput.charAt(i);
			}
		}
	}
	catch(e){}
	return returnVar;
}

function resetForm(formName){
	$(formName).reset();
}


// Declaring valid date character, minimum year and maximum year
var dtCh= "/";
var minYear=1700;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

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){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    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){
	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){
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		return false
	}
return true
}