var dtCh= "/";
var minYear=1900;
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 isDateValid(dtStr,dtMinStr,dtMaxStr){
	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="20"+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 date format should be : mm/dd/yyyy");
		return 1;
	}
	if (strMonth.length<1 || month<1 || month>12){
		//alert("Please enter a valid month");
		return 1;
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		//alert("Please enter a valid day");
		return 1;
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		//alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear);
		return 1;
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		//alert("Please enter a valid date</b>");
		return 1;
	}
return 0;
}
function dateDiff(dateA,timeA,dateB,timeB,isCar) {
date1 = new Date();
date2 = new Date();
diff  = new Date();
hr1=parseInt(timeA);
if (timeA.indexOf('P')>0) hr1+=12;
hr2=parseInt(timeB);
if (timeB.indexOf('P')>0) hr2+=12;

date1temp = new Date(dateA + " "+hr1+":00:00");
date1.setTime(date1temp.getTime());

date2temp = new Date(dateB + " "+hr2+":00:00");
date2.setTime(date2temp.getTime());

diff.setTime(Math.abs(date1.getTime() - date2.getTime()));

timediff = diff.getTime();

days = Math.floor(timediff / (1000 * 60 * 60 * 24)); 
timediff -= days * (1000 * 60 * 60 * 24);

hours = Math.floor(timediff / (1000 * 60 * 60)); 
timediff -= hours * (1000 * 60 * 60);

mins = Math.floor(timediff / (1000 * 60)); 
timediff -= mins * (1000 * 60);

secs = Math.floor(timediff / 1000); 
timediff -= secs * 1000;

if (isCar==1 && hours>1) days+=1;
return days;
}
function MoneyFormat(Amt) {
	var wd="w";
	var tempnum=Amt;
	for (i=0;i<tempnum.length;i++){
		if (tempnum.charAt(i)=="."){
			wd="d";
			break;
		}
	}
	if (wd=="w")
		return tempnum+".00";
	else{
		if (tempnum.charAt(tempnum.length-2)=="."){
			return tempnum+"0";
		} else{
			tempnum=Math.round(tempnum*100)/100
			return tempnum;
		}
	}
}

function toggleRow(row){
	if(row==null){
		return;
	}
	if(row.style.display=="none"){
		row.style.display="";
	}else{
		row.style.display="none";
	}
	return row;
}
function toggleRows(row1,row2){
	toggleRow(row1);
	toggleRow(row2);
}
function toggleRowAndButton(btn,row,label){
	if(row.style.display=="none"){
		row.style.display="";
		btn.value="hide "+label;
	}else{
		row.style.display="none";
		btn.value="show "+label;
	}
}

function toggleRowSwapImage(row, img, sVisibleSrc, sHiddenSrc){
	if(toggleRow(row).style.display=="none"){
		img.src = sHiddenSrc;
	}else{
		img.src = sVisibleSrc;
	}	
}

function onEnterSubmit(event,btn){
	if(event && event.keyCode==13){
		btn.click();
	}else{
		return true;
	}
}