function swapArrowDetached(prefix,imagePrefix,imageType) {
//initialize variables
var layer = document.getElementById(prefix + "Layer");
var arrow = document.getElementById(prefix + "Arrow");
//default arguments if not specified
if(typeof(imagePrefix) == "undefined") {
imagePrefix = "arrow_white";
}
if(typeof(imageType) == "undefined") {
imageType = "gif";
}
if(layer.style.display == 'none') {
arrow.src = "/images/" + imagePrefix + "_down." + imageType;
} else {
arrow.src = "/images/" + imagePrefix + "_right." + imageType;
}
showItem(layer);
}
function NumberFormat(number, mask) {
var result = number;
var zeros = mask.length;
var n = number.toString();
var m = mask.toString();
if (n.length > zeros) {
// remove leading zeros
while (n.length > zeros && n.substring(0,1) == "0") {
n = n.substring(1,n.length);
}
result = n;
} else if (n.length < zeros) {
// add leading zeros
while (n.length < zeros) {
n = "0" + n;
}
result = n;
}
return result;
}
function isLeapYear(year) {
return (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0));
}
function DateDiff(datepart, date1, date2) {
var result = 0;
var dateArray1 = BreakDate(date1);
var dateArray2 = BreakDate(date2);
var compare1 = new Date(dateArray1[0],(dateArray1[1]-1),dateArray1[2]);
var compare2 = new Date(dateArray2[0],(dateArray2[1]-1),dateArray2[2]);
var diffArray = GetDiffs(date1,date2);
switch (datepart.toLowerCase().substr(0,1)) {
case 'y':
if (diffArray[0] != 0) {
if (diffArray[1] < 0) {
result = parseInt(((dateArray2[2] > dateArray1[2]) ? diffArray[1] + 1 : diffArray[1]) / 12);
} else if (diffArray[1] > 0) {
result = parseInt(((dateArray2[2] < dateArray1[2]) ? diffArray[1] - 1 : diffArray[1]) / 12);
} else {
result = diffArray[0];
}
} else {
result = diffArray[0];
}
break;
case 'm':
if (diffArray[1] < 0) {
result = (dateArray2[2] > dateArray1[2]) ? diffArray[1] + 1 : diffArray[1];
} else if (diffArray[1] > 0) {
result = (dateArray2[2] < dateArray1[2]) ? diffArray[1] - 1 : diffArray[1];
} else {
result = diffArray[1];
}
break;
case 'd': result = Math.round((Date.parse(compare2) - Date.parse(compare1)) / (24 * 60 * 60 * 1000)); break;
}
return result;
}
function GetDiffs(date1, date2) {
// DateDiff helper function
var dateArray1 = BreakDate(date1);
var dateArray2 = BreakDate(date2);
var results = new Array(3);
results[0] = dateArray2[0] - dateArray1[0];
results[1] = dateArray2[1] - dateArray1[1] + (results[0] != 0 ? results[0] * 12 : 0);
results[2] = dateArray2[2] - dateArray1[2];
return results;
}
function BreakDate(string) {
var dateArray = new Array(3);
var regex = new RegExp("[^0-9 ]","g");
var result = string.replace(regex, " ");
var y = "";
var m = "";
var d = "";
var dim = 0;
// for IsDate, don't want to check last day of the month
if (arguments.length >= 2) {
dim = arguments[1];
}
if (result.indexOf(" ") > 0) {
y = parseInt(result.split(" ")[0]);
m = parseInt(NumberFormat(result.split(" ")[1],"0"));
d = parseInt(NumberFormat(result.split(" ")[2],"0"));
if (dim == 0) {
dim = DaysInMonth(y + "-" + m + "-" + d,m,y);
d = (d > dim) ? dim : d;
}
} else if (result.length == 8) {
y = parseInt(result.substring(0,4));
m = parseInt(NumberFormat(result.substring(4,6),"0"));
d = parseInt(NumberFormat(result.substring(6,8),"0"));
if (dim == 0) {
dim = DaysInMonth(y + "-" + m + "-" + d,m,y);
d = (d > dim) ? dim : d;
}
}
dateArray[0] = y;
dateArray[1] = m;
dateArray[2] = d;
return dateArray;
}
function DaysInMonth(date) {
if (arguments.length >= 2) {
var month = arguments[1];
} else {
var month = DatePart("M",date);
}
if (arguments.length >= 3) {
var year = arguments[2];
} else {
var year = DatePart("YYYY",date);
}
var result = 30;
switch (month.toString()) {
case '2': IsLeapYear(year) ? result = 29 : result = 28; break;
case '1':
case '3':
case '5':
case '7':
case '8':
case '10':
case '12': result = 31; break;
}
return result;
}