// ----------------------------------------------
// StyleSwitcher functions written by Paul Sowden
// http://www.idontsmoke.co.uk/ss/
// - - - - - - - - - - - - - - - - - - - - - - -
// For the details, visit ALA:
// http://www.alistapart.com/stories/alternate/
//
// nifty StyleSwitcher scripts modified by Aaron Jones 10/10/2002
// ----------------------------------------------

function setActiveStyleSheet(title, reset) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
  if (reset == 1) {
	  createCookie("aitu_style", title, 365);
  }
}

function setStyle() {
	var style = readCookie("aitu_style");
	if (style != null) {
		setActiveStyleSheet(style, 0);
	}
}


// ----------------------------------------------
// Window functions
// ----------------------------------------------

function popChild(url, width, height, winName) {
  var features = "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,width=" + width + ",height=" + height;
  if (winName == "") {
  	winName = "childWin";
  }
  SmallWin = window.open(url,winName,features);
  if (window.focus) {SmallWin.focus();}
}

// ----------------------------------------------

function loadParent(url) {
  var parentWin = window.opener
  if (window.opener.closed) {window.open(url,"parentWin");} else {
    parentWin.location = url;
    if (window.focus) {parentWin.focus();}
  }
}

// ----------------------------------------------

function sb(stxt) {
	window.status = stxt;
}


// ----------------------------------------------
// Cookie functions
// ----------------------------------------------

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = ";expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+";domain=.aitu.suroit.com;path=/;";
}

// ----------------------------------------------

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}


// ----------------------------------------------
// Date functions
// ----------------------------------------------

function isValidDay(iMonth, iDay, iYear) {

	//if selected exceeds max days in the month, returns max

	//set the days of the month array
	var aMonthDays = new Array(31,28,31,30,31,30,31,31,30,31,30,31);

	//if it's a leap year, add a day to feb
	if (iYear%4 == 0) {
		aMonthDays[1] = 29;
	}

	var iMonthIndex = iMonth-1;
	var iMaxDays = aMonthDays[iMonthIndex];
	
	//if the day exceeds the max, return the max
	if (iDay > iMaxDays) {
		return iMaxDays;
	} else {
		return iDay;
	}

}

function curDate() {
	var months = new Array(
		'January', 'February', 'March', 'April', 'May', 'June',
		'July', 'August', 'September', 'October', 'November', 'December'
	);

	var now   = new Date();
	var today = now.getDate();
	var month = now.getMonth();
	var year  = now.getFullYear();

	document.write(months[now.getMonth()] + ' ' + today + ', ' + year);
}

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