//Functions used in the MC


// A simple javascript to pop-up windows...
function openWindow(newURL, newWidth, newHeight, resize, scrollbars, winName)  {
  // Declare and initialize top and left variables
  var calcLeft = 100;
  var calcTop = 100;
  if (scrollbars=="") {scrollbars="no"}
  if (winName == "") { winName = "remote";}
         
  // Update properties if comp. browser
  if (parseInt(navigator.appVersion) >= 4){
  calcTop = screen.availHeight /2 - newHeight / 2;
  calcLeft = screen.availWidth / 2 - newWidth / 2;}

  // Open the new window using top and left properties
  popup_win = window.open(newURL, winName, 'status=no,toolbar=no,menubar=no,location=no,scrollbars=' + scrollbars + ',width=' + newWidth + ',height=' + newHeight + ',left=' + calcLeft + ',top=' + calcTop + ',resizable=yes');
  popup_win.opener.name = "opener";
  popup_win.focus()
}   


function closeWindow()
{
	//reload parent window
	window.opener.parent.location.reload();
	
	//close window
	window.close()
}
	
function strltrim(x) 
{
	//trim trailing spaces from left
    return x.replace(/^\s+/,'');
}

function strrtrim(x) 
{
	//trim trailing spaces from right
    return x.replace(/\s+$/,'');
}
function strtrim(x) 
{
	//trim trailing spaces (right and left)
    return x.replace(/^\s+/,'').replace(/\s+$/,'');
}



// ******************************************************************
// This function accepts a string variable and verifies if it is a
// proper date or not. It validates format matching either
// mm-dd-yyyy or mm/dd/yyyy. Then it checks to make sure the month
// has the proper number of days, based on which month it is.

// The function returns true if a valid date, false if not.
// ******************************************************************

function isDate(dateStr) {

	var datePat = /^(\d{1,2})(\/|-)(\d{1,2})(\/|-)(\d{4})$/;
	var matchArray = dateStr.match(datePat); // is the format ok?

	if (matchArray == null) 
	{
		alert("Please enter date as either mm/dd/yyyy or mm-dd-yyyy.");
		return false;
	}

	month = matchArray[1]; // p@rse date into variables
	day = matchArray[3];
	year = matchArray[5];

	if (month < 1 || month > 12) { // check month range
	alert("Month must be between 1 and 12.");
	return false;
	}

	if (day < 1 || day > 31) {
	alert("Day must be between 1 and 31.");
	return false;
	}

	if ((month==4 || month==6 || month==9 || month==11) && day==31) {
		alert("Month "+month+" doesn`t have 31 days!")
		return false;
	}

	if (month == 2) { // check for february 29th
		var isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
		if (day > 29 || (day==29 && !isleap)) {
		alert("February " + year + " doesn`t have " + day + " days!");
		return false;
		}
	}
	
	if (year < 1900 || year > 2005)
	{
		alert("Year "+year+" is out of range. ")
		return false;
	}
	
	return true; // date is valid
}