/**
 * DHTML date validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */
// Declaring valid date character, minimum year and maximum year
var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i=0;
    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=0;
    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 (yearCalc){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((yearCalc % 4 == 0) && ( (!(yearCalc % 100 == 0)) || (yearCalc % 400 == 0))) ? 29 : 28 );
}
function DaysArray(nLocal) {
	for (var iLocal = 1; iLocal <= nLocal; iLocal++) {
		this[iLocal] = 31
		if (iLocal==4 || iLocal==6 || iLocal==9 || iLocal==11) {this[iLocal] = 30}
		if (iLocal==2) {this[iLocal] = 29}
   } 
   return this
}

function isDateValidated(dtStr){
	var daysInMonthLocalArray = 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)
	}
	var monthInt=parseInt(strMonth)
	var dayInt=parseInt(strDay)
	var yearInt=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		//alert("The date format should be : mm/dd/yyyy")
		return false
	}
	if (strMonth.length<1 || monthInt<1 || monthInt>12){
		//alert("Please enter a valid month")
		return false
	}

	//alert("Month days check:"+daysInMonthLocalArray[monthInt]);
	if (strDay.length<1 || dayInt<1 || dayInt>31 || (monthInt==2 && dayInt>daysInFebruary(yearInt)) ){
		//alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || yearInt==0 || yearInt<minYear || yearInt>maxYear){
		//alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		//alert("Please enter a valid date")
		return false
	}
return true
}

function isOver13(bmonth, bday,byear){
		var propVal = 13;
                bday = bday == "Select" ? 0 : parseInt(bday);
                bmonth = bmonth == "Select" ? 0 : parseInt(bmonth) - 1;
                byear = byear == "Select" ? 0 : parseInt(byear);
                var now = new Date();
                cday = now.getDate();
                cmonth = now.getMonth();
                cyear = now.getFullYear();
                if ((cmonth > bmonth) || (cmonth == bmonth && cday >= bday)) {
                    var age = byear;
                    age = cyear - age;
                } else {
                    var age = byear + 1;
                    age = cyear - age;
                }
                return (age >= propVal ? true: false);

}

function echeck(str) {

	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1){
	   //alert("Invalid E-mail ID")
	   return false
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   //alert("Invalid E-mail ID")
	   return false
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
	   // alert("Invalid E-mail ID")
	    return false
	}

	 if (str.indexOf(at,(lat+1))!=-1){
	   // alert("Invalid E-mail ID")
	    return false
	 }

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
	   // alert("Invalid E-mail ID")
	    return false
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
	   // alert("Invalid E-mail ID")
	    return false
	 }

	 if (str.indexOf(" ")!=-1){
	   // alert("Invalid E-mail ID")
	    return false
	 }

	 return true					
}

function ValidateForm(){
	var dt=document.frmSample.txtDate
	if (isDate(dt.value)==false){
		dt.focus()
		return false
	}
    return true
 }