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 var expires = "";
	document.cookie = name+"="+value+expires+"; 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;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

function changeOpac(opacity, id) {
	var object = document.getElementById(id).style;
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + opacity + ")";
}

function opacity(id, opacStart, opacEnd, millisec) {
	//speed for each frame
	var speed = Math.round(millisec / 100);
	var timer = 0;

	//determine the direction for the blending, if start and end are the same nothing happens
	if(opacStart > opacEnd) {
		for(i = opacStart; i >= opacEnd; i--) {
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	} else if(opacStart < opacEnd) {
		for(i = opacStart; i <= opacEnd; i++)
			{
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	}
}

function imgPopupWindow (url) {
	var newWin = window.open('/misc/imgpopup.asp?ImgURL=' + url,'Viewer','resizable=0,height=50,width=50');
	newWin.focus();
}

function switchallingroup (id, group, state) {
	var frm = document.getElementById(id);
	for (var i = 0; i < frm.length; i++)
	{
		var item = frm.elements[i];
		if (item.type == 'checkbox') {
			if (item.getAttribute('group') == group) {
				item.checked = state;
			}
		}
	}
}

function showobj (id)
	{
	var obj = document.getElementById(id)
	if (obj!=null)
		obj.style.display = "block";
	}

function switchRow (id)
	{
	var row = document.getElementById(id);
	if (row!=null)
		{
		if (row.style.display == '')
			row.style.display = 'none';
		else
			row.style.display = '';
		}
	}

function hideobj (id)
	{
	var obj = document.getElementById(id)
	if (obj!=null)
		obj.style.display = "none";
	}

function switchobj (id)
	{
	var obj = document.getElementById(id)
	if (obj!=null)
		{
		if (obj.style.display == "none")
			obj.style.display = "block";
		else
			obj.style.display = "none";
		}
	}

function WinOpen(url,x,y) {
	var options = "toolbar=no,menubar=no,scrollbars=yes,resizable=yes,width=" + x + ",height=" + y;
	msgWindow=window.open(url,"WinOpen",options);
	msgWindow.focus();
	}

function openWindow(myLink,windowName)
	{
	if(! window.focus)return;
	var myWin=window.open("",windowName,"height=480,width=640,dependent=yes,scrollbars=yes");
	myWin.focus();
	myLink.target=windowName;
	}

function goOpener(myLink,closeme,closeonly)
	{
	if (! (window.focus && window.opener))return true;
	window.opener.focus();
	if (! closeonly)window.opener.location.href=myLink.href;
	if (closeme)window.close();
	return false;
	}

function letternumber(e)
	// <INPUT NAME="test" SIZE=5 MAXLENGTH=5 onKeyPress="return letternumber(event)">

	{
	var key;
	var keychar;

	if (window.event)
	   key = window.event.keyCode;
	else if (e)
	   key = e.which;
	else
	   return true;
	keychar = String.fromCharCode(key);
	keychar = keychar.toLowerCase();

	// control keys
	if ((key==null) || (key==0) || (key==8) ||
		(key==9) || (key==13) || (key==27) )
	   return true;

	// alphas and numbers
	else if ((("abcdefghijklmnopqrstuvwxyz0123456789").indexOf(keychar) > -1))
	   return true;
	else
	   return false;
	}

function numbersonly(myfield, e, dec)
	// <INPUT NAME="test" SIZE=5 MAXLENGTH=5 onKeyPress="return numbersonly(this, event)">
	{
	var key;
	var keychar;

	if (window.event)
	   key = window.event.keyCode;
	else if (e)
	   key = e.which;
	else
	   return true;
	keychar = String.fromCharCode(key);

	// control keys
	if ((key==null) || (key==0) || (key==8) ||
		(key==9) || (key==13) || (key==27) )
	   return true;

	// numbers
	else if ((("0123456789").indexOf(keychar) > -1))
	   return true;

	// decimal point jump
	else if (dec && (keychar == "."))
	   {
	   myfield.form.elements[dec].focus();
	   return false;
	   }
	else
	   return false;
	}


function checkdate(objName) {
	var datefield = objName;
	if (chkdate(objName) == false) {
	datefield.select();
	alert("That date is invalid.  Please try again.");
	datefield.focus();
	return false;
	}
	else {
	return true;
	   }
	}

function chkdate(objName) {
	//var strDatestyle = "US"; //United States date style
	var strDatestyle = "EU";  //European date style
	var strDate;
	var strDateArray;
	var strDay;
	var strMonth;
	var strYear;
	var intday;
	var intMonth;
	var intYear;
	var booFound = false;
	var datefield = objName;
	var strSeparatorArray = new Array("-"," ","/",".");
	var intElementNr;
	var err = 0;
	var strMonthArray = new Array(12);
	strMonthArray[0] = "Jan";
	strMonthArray[1] = "Feb";
	strMonthArray[2] = "Mar";
	strMonthArray[3] = "Apr";
	strMonthArray[4] = "May";
	strMonthArray[5] = "Jun";
	strMonthArray[6] = "Jul";
	strMonthArray[7] = "Aug";
	strMonthArray[8] = "Sep";
	strMonthArray[9] = "Oct";
	strMonthArray[10] = "Nov";
	strMonthArray[11] = "Dec";
	strDate = datefield.value;
	if (strDate.length < 1) {
	return true;
	}
	for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) {
	if (strDate.indexOf(strSeparatorArray[intElementNr]) != -1) {
	strDateArray = strDate.split(strSeparatorArray[intElementNr]);
	if (strDateArray.length != 3) {
	err = 1;
	return false;
	}
	else {
	strDay = strDateArray[0];
	strMonth = strDateArray[1];
	strYear = strDateArray[2];
	}
	booFound = true;
	   }
	}
	if (booFound == false) {
	if (strDate.length>5) {
	strDay = strDate.substr(0, 2);
	strMonth = strDate.substr(2, 2);
	strYear = strDate.substr(4);
	   }
	  else {
		return false;
	  }

	}
	//alert(strDay);
	//alert(strMonth);
	//alert(strYear);

	if (strYear.length == 2) {
	strYear = '20' + strYear;
	}
	// US style
	if (strDatestyle == "US") {
	strTemp = strDay;
	strDay = strMonth;
	strMonth = strTemp;
	}
	intday = parseInt(strDay, 10);
	if (isNaN(intday)) {
	err = 2;
	return false;
	}
	intMonth = parseInt(strMonth, 10);
	if (isNaN(intMonth)) {
	for (i = 0;i<12;i++) {
	if (strMonth.toUpperCase() == strMonthArray[i].toUpperCase()) {
	intMonth = i+1;
	strMonth = strMonthArray[i];
	i = 12;
	   }
	}
	if (isNaN(intMonth)) {
	err = 3;
	return false;
	   }
	}
	intYear = parseInt(strYear, 10);
	if (isNaN(intYear)) {
	err = 4;
	return false;
	}
	if ((strYear.length !=2) && (strYear.length !=4)) {
		return false;
	}

	if (intMonth>12 || intMonth<1) {
	err = 5;
	return false;
	}
	if ((intMonth == 1 || intMonth == 3 || intMonth == 5 || intMonth == 7 || intMonth == 8 || intMonth == 10 || intMonth == 12) && (intday > 31 || intday < 1)) {
	err = 6;
	return false;
	}
	if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intday > 30 || intday < 1)) {
	err = 7;
	return false;
	}
	if (intMonth == 2) {
	if (intday < 1) {
	err = 8;
	return false;
	}
	if (LeapYear(intYear) == true) {
	if (intday > 29) {
	err = 9;
	return false;
	}
	}
	else {
	if (intday > 28) {
	err = 10;
	return false;
	}
	}
	}
	if (strDatestyle == "US") {
	datefield.value = strMonthArray[intMonth-1] + " " + intday+" " + strYear;
	}
	else {
	datefield.value = intday + " " + strMonthArray[intMonth-1] + " " + strYear;
	}
	return true;
	}

function LeapYear(intYear) {
	if (intYear % 100 == 0) {
	if (intYear % 400 == 0) { return true; }
	}
	else {
	if ((intYear % 4) == 0) { return true; }
	}
	return false;
	}

function doDateCheck(from, to) {
	if (Date.parse(from.value) <= Date.parse(to.value)) {
	alert("The dates are valid.");
	}
	else {
	if (from.value == "" || to.value == "")
	alert("Both dates must be entered.");
	else
	alert("To date must occur after the from date.");
	   }
	}