//********************************************************************
//*	       Name:	common_scripts.js
//*	Description:	JavaScript functions
//*	    Created:	01/15/07
//*	    Updated:	01/16/07
//********************************************************************

//********************************************************************
//* fnPopupWindow(strFileName)
//* Opens a new popup window
//* strFileName = The name of the page to display in the window
//* intWinWidth = The desired width of the popup window
//* intWinHeight = The desired height of the popup window
//********************************************************************
function fnPopupWindow(strFileName, intWinWidth, intWinHeight) {
	var winWidth = intWinWidth;
	var winHeight = intWinHeight;
	var scrWidth = (screen.width - winWidth)/2;
	var scrHeight = (screen.height - winHeight)/2;
	winPopup = window.open(strFileName, 'winPopup', 'width=' + winWidth + ', height=' + winHeight + ', top=' + scrHeight + ', left=' + scrWidth + ', toolbar=no, menubar=no, scrollbars=yes, resizable=yes');
	if (window.focus) {
		winPopup.focus();
	}
	return false;
}

//********************************************************************
//* fnTextFocus(objElement, blnEvent)
//* Changes the background color of a text form element when it is in focus
//* objElement = The form element to change
//* blnEvent = Whether the element is in or out of focus
//********************************************************************
function fnTextFocus(objElement, blnEvent) {
	if (blnEvent == 0) {
		objElement.style.backgroundColor = '#FFFFFF';
		if (objElement.value == "") {
			objElement.value = objElement.defaultValue;
			objElement.style.color = '#999999';
		}
		else if (objElement.value == objElement.defaultValue) {
			objElement.style.color = '#999999';
		}
		else {
			objElement.style.color = '#282F33';
		}
	}
	else {
		objElement.style.backgroundColor = '#FFFFCC';
		if (objElement.value == objElement.defaultValue) {
			objElement.value = "";
			objElement.style.color = '#282F33';
		}
	}
}

//********************************************************************
//* fnSelectFocus(objElement, blnEvent)
//* Changes the background color of a select list element when it is in focus
//* objElement = The form element to change
//* blnEvent = Whether the element is in or out of focus
//********************************************************************
function fnSelectFocus(objElement, blnEvent) {
	if (blnEvent == 0) {
		objElement.style.backgroundColor = '#FFFFFF';
		if (objElement.value == "* please select *") {
			objElement.style.color = '#999999';
		}
	}
	else {
		objElement.style.backgroundColor = '#FFFFCC';
		objElement.style.color = '#282F33';
	}
}

//********************************************************************
//* fnCheckEmail(strEmail)
//* Check if the string is a valid e-mail address. Returns true or false.
//* strEmail = The string to validate
//********************************************************************
function fnCheckEmail(strEmail) {
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
	if (filter.test(strEmail)) {
		return true;
	}
	else {
		return false;
	}
}

//********************************************************************
//* fnEmailProt(strEmail)
//* Replaces the text with a valid ampersand then opens the mail window
//********************************************************************
function fnEmailPot(strProtEmail) {
	var CleanEmail = strProtEmail.replace("[at]", "@");
	CleanEmail = CleanEmail.replace("[dot]", ".");
	document.location.href='mailto:' + CleanEmail;
}

/**
 * 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;
    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){
		// alert("The date format should be : mm/dd/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		// alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		// alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>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
}