// JScript File
var dtCh= "/";
var minYear=1901;
var maxYear=2050;

function check_blank(formtype, etext)
{
    if(formtype.value == "")
    {
   	    alert("Please enter a value for the \"" + etext + "\" field.");
	    formtype.focus()
   	    return false;
    }
    return true;
}
function check_pwd(one, two)
{
    if(one.value != two.value)
    {
   	    alert("Unabled to confirm password");
   	    one.value=""
   	    two.value=""
	    one.focus()
   	    return false;
    }
    return true;

}
function check_numeric(formtype, etext)
{
    if(isNaN(formtype.value.replace(".","")))
    {
   	    alert("Please enter a numeric value for the " + etext + " field.");
	    formtype.focus()
   	    return false;
    }
    return true;
}
function isInteger(s)
{
	var i;
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    return true;
}

function stripCharsInBag(s, bag)
{
	var i;
    var 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, etext)
{
	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){
		alert("The " + etext + " format should be : mm/dd/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month for " + etext)
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day for " + etext)
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear + " for " + etext)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid date for " + etext)
		return false
	}
    return true
}

function validate_date(formtype, etext)
{
	if (isDate(formtype.value, etext)==false)
	{
		formtype.focus()
		return false
	}
    return true
}

// Same as validate date but allws NULLs
function validate_nulldate(formtype, etext)
{
	if (formtype.value == null)
		return true;
	if (formtype.value == "")
		return true;
	if (isDate(formtype.value, etext)==false)
	{
		formtype.focus()
		return false
	}
    return true
}