function openWindow(pTarget,pWidth,pHeight){
	window.open(pTarget,"New_window","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, copyhistory=no, width="+ pWidth +", height="+ pHeight)
}
function openMedWindow(pTarget){
	window.open(pTarget,"Med_window","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, copyhistory=no, width=610, height=200")
}
function openLgWindow(pTarget){
	window.open(pTarget,"Lg_window","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, copyhistory=no, width=500, height=500")
}
function openMsgWindow(pTarget){
	window.open(pTarget,"Lg_window","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, copyhistory=no, width=610, height=400")
}

function selectionMade(fieldCollection,fieldLabel,required){
	var itemSelected = false;
	var selection = false;
	for (i=0;i<fieldCollection.length;++ i){
		if(fieldCollection[i].checked){
			itemSelected=true;
			selection = fieldCollection[i].value;
		}
	}
	if(required && !itemSelected)
		alert('You must make a selection for "'+ fieldLabel +'".');
	return selection;
}

function IsValidTime(formField,fieldLabel,required) {
// Checks if time is in HH:MM:SS AM/PM format.
// The seconds and AM/PM are optional.
	if (required && !validRequired(formField,fieldLabel))
		return false;
	var timeStr = formField.value;

	var timePat = /^(\d{1,2}):(\d{2})(:(\d{2}))?(\s?(AM|am|PM|pm))?$/;
	var sp = timeStr.length - timeStr.lastIndexOf(" ")

	var matchArray = timeStr.match(timePat);
	if (matchArray == null || sp!=3) {
		alert(fieldLabel + "\nTime is not in a valid format.\n\nHH:MM:SS AM/PM\n\nAnd make sure there are no spaces at the end.");
		formField.focus();
		return false;
	}
	hour = matchArray[1];
	minute = matchArray[2];
	second = matchArray[4];
	ampm = matchArray[6];

	if (second=="") { second = null; }
	if (ampm=="") { ampm = null }

	if (hour < 1  || hour > 12) {
		alert(fieldLabel + "\nHour must be between 1 and 12.");
		formField.focus();
		return false;
	}
	if (minute<0 || minute > 59) {
		alert (fieldLabel + "\nMinute must be between 0 and 59.");
		formField.focus();
		return false;
	}
	if (second != null && (second < 0 || second > 59)) {
		alert (fieldLabel + "\nSecond must be between 0 and 59.");
		formField.focus();
		return false;
	}
	if (ampm == null) {
		alert(fieldLabel + "\nYou must specify AM or PM.");
		formField.focus();
		return false;
	}
	return true;
}

function isEmailAddr(email)
{
  var result = true;
  var theStr = new String(email);
  var invalidChars = "*|,\":<>[]{}`\';()&$#%";
  if(theStr.indexOf("@")==-1 || theStr.indexOf(".")==-1) {
	result = false;
  }
  if(theStr.lastIndexOf(".") < theStr.indexOf("@")) {
	result = false;
  }
  if(theStr.indexOf(" ")>-1) {
	result = false;
  }
  for (var i = 0; i < theStr.length; i++) {
	if (invalidChars.indexOf(theStr.charAt(i)) != -1){
	  result = false;
	}
  }
  var theStr_substrings = theStr.split("@"); 
  if(theStr_substrings.length!=2) { 
	result = false;
  }
  return result;
}

function validMustMatch(formField1,fieldLabel1,formField2,fieldLabel2)
{
	var result = true;

	if (formField1.value != formField2.value)
	{
		alert('The "' + fieldLabel1 + '" field must match the "' + fieldLabel2 + '" field.');
		formField1.focus();
		result = false;
	}
	
	return result;
}

function validRequired(formField,fieldLabel)
{
	var result = true;

	if (formField.value == "")
	{
		alert('Please enter a value for the "' + fieldLabel +'" field.');
		formField.focus();
		result = false;
	}
	
	return result;
}

function validRequiredCombo(formField,fieldLabel)
{
	var result = true;
	
	if (formField.value == "0" || formField.value == "")
	{
		alert('Please enter a value for the "' + fieldLabel +'" field.');
		formField.focus();
		result = false;
	}
	
	return result;
}

function allDigits(str)
{
	return inValidCharSet(str,"0123456789");
}

function inValidCharSet(str,charset)
{
	var result = true;

	// Note: doesn't use regular expressions to avoid early Mac browser bugs	
	for (var i=0;i<str.length;i++)
		if (charset.indexOf(str.substr(i,1))<0)
		{
			result = false;
			break;
		}
	
	return result;
}

function validEmail(formField,fieldLabel,required)
{
	var result = true;
	


	if (required && !validRequired(formField,fieldLabel))
		result = false;

	if (result && formField.value != "" && !isEmailAddr(formField.value))
	{
		alert("Please enter a complete email address in the form: yourname@yourdomain.com");
		formField.focus();
		result = false;
	}
   
  return result;

}

function validNum(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
 	if (result)
 	{
 		if (!allDigits(formField.value))
 		{
 			alert('Please enter a number for the "' + fieldLabel +'" field.');
			formField.focus();		
			result = false;
		}
	} 
	
	return result;
}


function validInt(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
 	if (result)
 	{
 		var num = parseInt(formField.value,10);
 		if (isNaN(num))
 		{
 			alert('Please enter a number for the "' + fieldLabel +'" field.');
			formField.focus();		
			result = false;
		}
	} 
	
	return result;
}

function validDate(formField,fieldLabel,required)
{
	var result = true;
	
	if (required && !validRequired(formField,fieldLabel))
		result = false;

 	if (result  && formField.value != "")
 	{
 		var elems = formField.value.split("/");
 		
 		result = (elems.length == 3); // should be three components
 		
 		if (result)
 		{
 			var month = parseInt(elems[0],10);
  			var day = parseInt(elems[1],10);
 			var year = parseInt(elems[2],10);
			result = allDigits(elems[0]) && (month > 0) && (month < 13) &&
					 allDigits(elems[1]) && (day > 0) && (day < 32) &&
					 allDigits(elems[2]) && ((elems[2].length == 2) || (elems[2].length == 4));
 		}
 		
  		if (!result)
 		{
 			alert('Please enter a date in the format MM/DD/YYYY for the "' + fieldLabel +'" field.');
			formField.focus();		
		}
	} 
	
	return result;
}