function SetCursor(img,inorout)
{
// img is the image to check for cursor type
// onmouseover:
//		if inorout is set to 1 
//			if the img is enabled then the cursor is set to the hand
//			if the img is disabled then the cursor is set to the arrow (default)
//		if inorout is set to 2 
//			the img is always enabled so the cursor is set to the hand
// onmouseout:
//		inorout is set to 0 so that the cursor is set to the arrow (default)

	
	if (inorout == 1)
		{
		if (img.disabled == true) 
			{
			document.body.style.cursor='default';
			}
		else
			{
			document.body.style.cursor='hand';
			}
		}
	if (inorout == 0) 
		{
		document.body.style.cursor='default';
		}
	if (inorout == 2)
		{
		document.body.style.cursor='hand';
		}
		
}

function TrimField(field)
	{
	var validstr = new String(""); //init the output string
	var valuetotest = new String(field.value); //string variable of inputed value
	replacestring = false; //controls whether the value on the form is replaced or not
	instring = false;
	for(loopnum=0; loopnum<=valuetotest.length - 1; loopnum++) //loop for entire string to test
		{
		currentcharvalid = true //assume current character in string is not a space
		currentchar = valuetotest.charAt(loopnum)	//retrieve the current character to test
		if ((currentchar == " ") && (!instring)) //see if the current character is a space
			{
			currentcharvalid = false;
			}
		else
			{
			currentcharvalid = true;
			instring = true;
			}
						
		if (currentcharvalid)
			{
			validstr = validstr + currentchar //if the current character is valid, add it to the validated string
			}
		else
			{
			replacestring = true //if there is an instance of an invalid character, the value on the form will need to be replaced
			}
							
		if (replacestring) 
			{
			field.value = validstr; //replace the value on the form if needed
			}
				
		}
	}

function ValidateField(field,cancontain)
	{
	if (field.value != "") 
		{ 
		var validchar = new String(cancontain); //these are the valid characters for the field
		var validstr = new String(""); //init the output string
		var valuetotest = new String(field.value); //string variable of inputed value
		replacestring = false; //controls whether the value on the form is replaced or not
		for(loopnum=0; loopnum<=valuetotest.length - 1; loopnum++) //loop for entire string to test
			{
			currentcharvalid = false //assume current character in string is not a valid one
			currentchar = valuetotest.charAt(loopnum)	//retrieve the current character to test
			for(loopnum2=0; loopnum2<=validchar.length - 1; loopnum2++) //loop through the list of valid characters
				{
				if (currentchar == validchar.charAt(loopnum2)) //check to see if the character to test is valid
					{
					currentcharvalid = true //if it is valid set the boolean
					}
				}
						
			if (currentcharvalid)
				{
				validstr = validstr + currentchar //if the current character is valid, add it to the validated string
				}
			else
				{
				replacestring = true //if there is an instance of an invalid character, the value on the form will need to be replaced
				}
							
			}
		if (replacestring) 
			{
			field.value = validstr; //replace the value on the form if needed
			}
				
		}
	}
	

function FieldCheck(frm, field, valid_string, SubmitImage)
	{
	//variables being passed
	//	frm - the form that the fields being checked exist on
	//	field - the field that was modified and originated the call to this function
	//	valid_string - a string of characters that are allowed in the field
	//		use an empty string to show ALL characters are valid
	//	SubmitImage - an object with the three following properties
	//		name - the name of the submit image used by the form (<IMG name="xxxxx">)
	//		imgon - the path of the image used when the button above is enabled
	//		imgoff - the path of the image used when the button above is disabled
	
	var hold;
	var x;
	var loc_req;
	var loc_group;
	var fieldname;
	var fieldtype;
	var fieldok;
	var formok;
	var groupname;
	
	//this is the object to track the linked required fields (fielda or fieldb)
	groupcheck = new Object;
	
	//this is the object to track the radio buttons
	radiocheck = new Object;
	
	//remove the leading and trailing spaces (AKA trim)
	if ((field.type == "text") || (field.type == "textarea"))
		{
		TrimField(field);
		}
	
	//check the field for valid information
	if (valid_string != "") //if we should validate the field
		{
		ValidateField(field,valid_string); //call the validatefield function to check the field and adjust accordingly	
		}
	
	//assume the form is valid to start
	formok = true;
	
	//loop through all the fields on the form and check each accordingly
	for (x=0; x < frm.length; x++)
		{
		loc_req = frm[x].name.search("req_");
		fieldname = frm[x].name
		if (loc_req != -1) // req_ in the name means it is a required field (ex: req_fieldx)
			{
			fieldname = frm[x].name.substr(4, frm[x].name.length);
			loc_group = fieldname.search("_")
			if (loc_group != -1) // _ found in the name means that it is a grouped or statement
				{
				//pull out the groupname (ex: g1 or g2)
				groupname = fieldname.substr(0,fieldname.search("_"));
				fieldname = fieldname.substr(fieldname.search("_")+1, fieldname.length);
				fieldtype = "group";
				}
			else // this is a single required field not tied to any other
				{
				fieldtype = "single";
				}
				
			//if the field type is 'text' or 'file' check that it contains something
			if ((frm[x].type == "text") || (frm[x].type == "file"))
				{
				if (frm[x].value == "")
					{
					fieldok = false;
					}
				else
					{
					fieldok = true;
					}
				}
			
			//if the field type is password check that it contains something
			if (frm[x].type == "password")
				{
				if (frm[x].value == "")
					{
					fieldok = false;
					}
				else
					{
					fieldok = true;
					}
				}
				
			//if the field type is select-one (drop-down box) check that it has a selection
			if (frm[x].type == "select-one")
				{
				if (frm[x].selectedIndex != 0)
					{
					fieldok = true;
					}
				else
					{
					fieldok = false;
					}
				}
				
			//if the field type is textarea check that it contains text
			if (frm[x].type == "textarea")
				{
				if (frm[x].value != "")
					{
					fieldok = true;
					}
				else
					{
					fieldok = false;
					}
				}
			
			//if the field type is checkbox check that it contains text
			if (frm[x].type == "checkbox")
				{
				if (frm[x].checked)
					{
					fieldok = true;
					}
				else
					{
					fieldok = false;
					}
				}
				
			//if the field type is radio
			if (frm[x].type == "radio")
				{
				if (radiocheck[fieldname] == undefined)
					{
					if (frm[x].checked)
						{
						radiocheck[fieldname] = 1;
						}
					else
						{
						radiocheck[fieldname] = 0;
						}
					}
				else
					{
					if (frm[x].checked)
						{
						radiocheck[fieldname] = 1;
						}
					}
				}
			
			//if the fieldtype is single, check that a value was entered and set the formok boolean accordingly
			if (fieldtype == "single")
				{
				if ((!fieldok) && (frm[x].type != "radio"))
					{
					formok = false;
					}
				}
				
			//if the fieldtype is group, check that a value was entered and set the group's tracking variable (an object property) accordingly
			//only allow the group tracking variable to be set to true once a group is encountered
			//	if the first field is false, that allows it to find an entry later in the group
			if (fieldtype == "group")
				{
				if (groupcheck[groupname] == undefined)
					{
					if (fieldok)
						{
						groupcheck[groupname] = 1;
						}
					else
						{
						groupcheck[groupname] = 0;
						}
					}
				else
					{
					if (fieldok)
						{
						groupcheck[groupname] = groupcheck[groupname] + 1;
						}
					}
				}
			
			}
	
		
		}
		
	//go through the groups and check to see that all are valid
	//if there are more than one answer in a group, send it to SetGroupFields to clear the extra values
	for (x in groupcheck)
		{
		if (groupcheck[x] == 0)
			{
			formok = false;
			}
		if (groupcheck[x] > 1)
			{
			SetGroupFields(x,field);
			}
		}
	
	//go through the radio buttons and see if there is one checked for each
	//if there are more than one answer in a group, send it to SetGroupFields to clear the extra values
	for (x in radiocheck)
		{
		if (radiocheck[x] == 0)
			{
			formok = false;
			}
		}
	
	//turn the submit image on or off according to the formok status
	if (formok)
		{
		
		frm.elements[SubmitImage.name].disabled = false;
		frm.elements[SubmitImage.name].src = SubmitImage.imgon;
		}
	else
		{
		frm.elements[SubmitImage.name].disabled = true;
		frm.elements[SubmitImage.name].src = SubmitImage.imgoff;
		}	
	}
	
function SetGroupFields(groupname2,fieldtokeep)
	{
	//this function is used by FieldCheck to set a group when a value is found
	//delete all values, except the one that was just entered and initiated the call to this function

	//alert("keep: " + groupname2 + " - " + fieldtokeep.name);
	
	var fieldname2;
	
	for (x=0; x < frm.length; x++)
		{
		loc_req = frm[x].name.search("req_");
		fieldname2 = frm[x].name
		fieldname = frm[x].name
		if (loc_req != -1) // req_ in the name means it is a required field (ex: req_fieldx)
			{
			fieldname = frm[x].name.substr(4, frm[x].name.length);
			loc_group = fieldname.search("_")
			if (loc_group != -1) // _ found in the name means that it is a grouped or statement
				{
				//pull out the groupname (ex: g1 or g2)
				groupname = fieldname.substr(0,fieldname.search("_"));
				fieldname = fieldname.substr(fieldname.search("_")+1, fieldname.length);
				fieldtype = "group";
				}
			else // this is a single required field not tied to any other
				{
				fieldtype = "single";
				}
			
			
			if (fieldtype == "group")
				{
				if (groupname2 == groupname)
					{
					if (fieldname2 != fieldtokeep.name)
						{
						if (frm[fieldname2].type == "select-one")
							{
							frm[fieldname2].selectedIndex = 0;
							}
						else
							{
							frm[fieldname2].value = "";
							}
						}	
					}
				} 
			}
		}
	
	}


// this function validates the value in a field as a time value
function ValidateTime(field)
	{
	valid = true;
	if (field.value == "")
		valid = false;
	else
		{
		var testval = new String(field.value);
		var testvalup = new String(testval.toUpperCase());;
		if ((testvalup.search('AM') == -1) && (testvalup.search('PM') == -1))
			{
			valid = false;
			}
		newdate = new Date('1/1/1900 ' + field.value);
		if (isNaN(newdate.getTime()))
			{
			valid = false;
			}
		}
	
	if (valid)
		{
		return true;
		}
	else
		{
		return false;
		}
	} //end ValidateTime

//used by validatedate to check the numbers in the date value
function IsNumberValid(teststring, lowlimit, highlimit, maxlen)
	{
	//check to be sure that the number sent in ONLY contains numbers
	numok = true;
	for(x=0;x<teststring.length;x++)
		{
		t = parseInt(teststring.charAt(x));
		if (isNaN(t))
			{
			numok = false;
			}
		}
	//check that number is within limits specified
	if (numok)
		{
		t = parseInt(teststring);
		if ((t < lowlimit) || (t > highlimit))
			{
			numok = false;
			}
		}
		
	//check that number is not longer than allowed
	if (teststring.length > maxlen)
		{
		numok = false;
		}
		
	return numok;
	}

//function checks the value of the field for a date
function ValidateDate(field)
	{
	
	valid = true;
	
	//find the month
	loc1 = field.value.search("/");
	if (loc1 != -1)
		{	 
		monthpart = field.value.substr(0, loc1);
		leftover = field.value.substr(loc1 + 1, field.value.length);
		if (monthpart.length == 0)
			{
			valid = false;
			}

		if (!IsNumberValid(monthpart, 1, 12, 2))
			{
			valid = false;
			}
    
		//find the date
		loc2 = leftover.search("/");
		if (loc2 != -1)
			{
			datepart = leftover.substr(0, loc2);
			if (datepart.length == 0)
				{
				valid = false;
				}
				
			if (!IsNumberValid(datepart, 1, 31, 2))
				{
				valid = false;
				}
			
			//the year is the leftover part
			yearpart = leftover.substr(loc2 + 1, leftover.length);

			if (yearpart.length == 2)
				{
				if (!IsNumberValid(yearpart, 1, 99, 2))
					{
					valid = false;
					}
				}
			if (yearpart.length == 4)
				{
				if (!IsNumberValid(yearpart, 1, 3000, 4))
					{
					valid = false;
					}					
				}
			if ((yearpart.length != 4) && (yearpart.length != 2))
				{
				valid = false;
				}
				
				

			}
		else
			{
			valid = false;
			}
		}
	else
		{
		valid = false;
		}
	if (valid)
		{
		return true;
		}
	else
		{
		return false;
		}
	} //end ValidateDate

	
// ------------------------------------------------------------------
// These functions use the same 'format' strings as the 
// java.text.SimpleDateFormat class, with minor exceptions.
// The format string consists of the following abbreviations:
// 
// Field        | Full Form          | Short Form
// -------------+--------------------+-----------------------
// Year         | yyyy (4 digits)    | yy (2 digits), y (2 or 4 digits)
// Month        | MMM (name or abbr.)| MM (2 digits), M (1 or 2 digits)
// Day of Month | dd (2 digits)      | d (1 or 2 digits)
// Day of Week  | EE (name)          | E (abbr)
// Hour (1-12)  | hh (2 digits)      | h (1 or 2 digits)
// Hour (0-23)  | HH (2 digits)      | H (1 or 2 digits)
// Hour (0-11)  | KK (2 digits)      | K (1 or 2 digits)
// Hour (1-24)  | kk (2 digits)      | k (1 or 2 digits)
// Minute       | mm (2 digits)      | m (1 or 2 digits)
// Second       | ss (2 digits)      | s (1 or 2 digits)
// AM/PM        | a                  |
//
// NOTE THE DIFFERENCE BETWEEN MM and mm! Month=MM, not mm!
// Examples:
//  "MMM d, y" matches: January 01, 2000
//                      Dec 1, 1900
//                      Nov 20, 00
//  "M/d/yy"   matches: 01/20/00
//                      9/2/00
//  "MMM dd, yyyy hh:mm:ssa" matches: "January 01, 2000 12:30:45AM"
// ------------------------------------------------------------------

var MONTH_NAMES=new Array('January','February','March','April','May','June','July','August','September','October','November','December','Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec');
var DAY_NAMES=new Array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sun','Mon','Tue','Wed','Thu','Fri','Sat');
function LZ(x) {return(x<0||x>9?"":"0")+x}

// ------------------------------------------------------------------
// isDate ( date_string, format_string )
// Returns true if date string matches format of format string and
// is a valid date. Else returns false.
// It is recommended that you trim whitespace around the value before
// passing it to this function, as whitespace is NOT ignored!
// ------------------------------------------------------------------
function isDate(val,format) {
	var date=getDateFromFormat(val,format);
	if (date==0) { return false; }
	return true;
	}

// -------------------------------------------------------------------
// compareDates(date1,date1format,date2,date2format)
//   Compare two date strings to see which is greater.
//   Returns:
//   1 if date1 is greater than date2
//   0 if date2 is greater than date1 of if they are the same
//  -1 if either of the dates is in an invalid format
// -------------------------------------------------------------------
function compareDates(date1,dateformat1,date2,dateformat2) {
	var d1=getDateFromFormat(date1,dateformat1);
	var d2=getDateFromFormat(date2,dateformat2);
	if (d1==0 || d2==0) {
		return -1;
		}
	else if (d1 > d2) {
		return 1;
		}
	return 0;
	}

// ------------------------------------------------------------------
// formatDate (date_object, format)
// Returns a date in the output format specified.
// The format string uses the same abbreviations as in getDateFromFormat()
// ------------------------------------------------------------------
function formatDate(date,format) {
	format=format+"";
	var result="";
	var i_format=0;
	var c="";
	var token="";
	var y=date.getYear()+"";
	var M=date.getMonth()+1;
	var d=date.getDate();
	var E=date.getDay();
	var H=date.getHours();
	var m=date.getMinutes();
	var s=date.getSeconds();
	var yyyy,yy,MMM,MM,dd,hh,h,mm,ss,ampm,HH,H,KK,K,kk,k;
	// Convert real date parts into formatted versions
	var value=new Object();
	if (y.length < 4) {y=""+(y-0+1900);}
	value["y"]=""+y;
	value["yyyy"]=y;
	value["yy"]=y.substring(2,4);
	value["M"]=M;
	value["MM"]=LZ(M);
	value["MMM"]=MONTH_NAMES[M-1];
	value["d"]=d;
	value["dd"]=LZ(d);
	value["E"]=DAY_NAMES[E+7];
	value["EE"]=DAY_NAMES[E];
	value["H"]=H;
	value["HH"]=LZ(H);
	if (H==0){value["h"]=12;}
	else if (H>12){value["h"]=H-12;}
	else {value["h"]=H;}
	value["hh"]=LZ(value["h"]);
	if (H>11){value["K"]=H-12;} else {value["K"]=H;}
	value["k"]=H+1;
	value["KK"]=LZ(value["K"]);
	value["kk"]=LZ(value["k"]);
	if (H > 11) { value["a"]="PM"; }
	else { value["a"]="AM"; }
	value["m"]=m;
	value["mm"]=LZ(m);
	value["s"]=s;
	value["ss"]=LZ(s);
	while (i_format < format.length) {
		c=format.charAt(i_format);
		token="";
		while ((format.charAt(i_format)==c) && (i_format < format.length)) {
			token += format.charAt(i_format++);
			}
		if (value[token] != null) { result=result + value[token]; }
		else { result=result + token; }
		}
	return result;
	}
	
// ------------------------------------------------------------------
// Utility functions for parsing in getDateFromFormat()
// ------------------------------------------------------------------
function _isInteger(val) {
	var digits="1234567890";
	for (var i=0; i < val.length; i++) {
		if (digits.indexOf(val.charAt(i))==-1) { return false; }
		}
	return true;
	}
function _getInt(str,i,minlength,maxlength) {
	for (var x=maxlength; x>=minlength; x--) {
		var token=str.substring(i,i+x);
		if (token.length < minlength) { return null; }
		if (_isInteger(token)) { return token; }
		}
	return null;
	}
	
// ------------------------------------------------------------------
// getDateFromFormat( date_string , format_string )
//
// This function takes a date string and a format string. It matches
// If the date string matches the format string, it returns the 
// getTime() of the date. If it does not match, it returns 0.
// ------------------------------------------------------------------
function getDateFromFormat(val,format) {
	val=val+"";
	format=format+"";
	var i_val=0;
	var i_format=0;
	var c="";
	var token="";
	var token2="";
	var x,y;
	var now=new Date();
	var year=now.getYear();
	var month=now.getMonth()+1;
	var date=1;
	var hh=now.getHours();
	var mm=now.getMinutes();
	var ss=now.getSeconds();
	var ampm="";
	
	while (i_format < format.length) {
		// Get next token from format string
		c=format.charAt(i_format);
		token="";
		while ((format.charAt(i_format)==c) && (i_format < format.length)) {
			token += format.charAt(i_format++);
			}
		// Extract contents of value based on format token
		if (token=="yyyy" || token=="yy" || token=="y") {
			if (token=="yyyy") { x=4;y=4; }
			if (token=="yy")   { x=2;y=2; }
			if (token=="y")    { x=2;y=4; }
			year=_getInt(val,i_val,x,y);
			if (year==null) { return 0; }
			i_val += year.length;
			if (year.length==2) {
				if (year > 70) { year=1900+(year-0); }
				else { year=2000+(year-0); }
				}
			}
		else if (token=="MMM"){
			month=0;
			for (var i=0; i<MONTH_NAMES.length; i++) {
				var month_name=MONTH_NAMES[i];
				if (val.substring(i_val,i_val+month_name.length).toLowerCase()==month_name.toLowerCase()) {
					month=i+1;
					if (month>12) { month -= 12; }
					i_val += month_name.length;
					break;
					}
				}
			if ((month < 1)||(month>12)){return 0;}
			}
		else if (token=="EE"||token=="E"){
			for (var i=0; i<DAY_NAMES.length; i++) {
				var day_name=DAY_NAMES[i];
				if (val.substring(i_val,i_val+day_name.length).toLowerCase()==day_name.toLowerCase()) {
					i_val += day_name.length;
					break;
					}
				}
			}
		else if (token=="MM"||token=="M") {
			month=_getInt(val,i_val,token.length,2);
			if(month==null||(month<1)||(month>12)){return 0;}
			i_val+=month.length;}
		else if (token=="dd"||token=="d") {
			date=_getInt(val,i_val,token.length,2);
			if(date==null||(date<1)||(date>31)){return 0;}
			i_val+=date.length;}
		else if (token=="hh"||token=="h") {
			hh=_getInt(val,i_val,token.length,2);
			if(hh==null||(hh<1)||(hh>12)){return 0;}
			i_val+=hh.length;}
		else if (token=="HH"||token=="H") {
			hh=_getInt(val,i_val,token.length,2);
			if(hh==null||(hh<0)||(hh>23)){return 0;}
			i_val+=hh.length;}
		else if (token=="KK"||token=="K") {
			hh=_getInt(val,i_val,token.length,2);
			if(hh==null||(hh<0)||(hh>11)){return 0;}
			i_val+=hh.length;}
		else if (token=="kk"||token=="k") {
			hh=_getInt(val,i_val,token.length,2);
			if(hh==null||(hh<1)||(hh>24)){return 0;}
			i_val+=hh.length;hh--;}
		else if (token=="mm"||token=="m") {
			mm=_getInt(val,i_val,token.length,2);
			if(mm==null||(mm<0)||(mm>59)){return 0;}
			i_val+=mm.length;}
		else if (token=="ss"||token=="s") {
			ss=_getInt(val,i_val,token.length,2);
			if(ss==null||(ss<0)||(ss>59)){return 0;}
			i_val+=ss.length;}
		else if (token=="a") {
			if (val.substring(i_val,i_val+2).toLowerCase()=="am") {ampm="AM";}
			else if (val.substring(i_val,i_val+2).toLowerCase()=="pm") {ampm="PM";}
			else {return 0;}
			i_val+=2;}
		else {
			if (val.substring(i_val,i_val+token.length)!=token) {return 0;}
			else {i_val+=token.length;}
			}
		}
	// If there are any trailing characters left in the value, it doesn't match
	if (i_val != val.length) { return 0; }
	// Is date valid for month?
	if (month==2) {
		// Check for leap year
		if ( ( (year%4==0)&&(year%100 != 0) ) || (year%400==0) ) { // leap year
			if (date > 29){ return false; }
			}
		else { if (date > 28) { return false; } }
		}
	if ((month==4)||(month==6)||(month==9)||(month==11)) {
		if (date > 30) { return false; }
		}
	// Correct hours value
	if (hh<12 && ampm=="PM") { hh=hh-0+12; }
	else if (hh>11 && ampm=="AM") { hh-=12; }
	var newdate=new Date(year,month-1,date,hh,mm,ss);
	return newdate.getTime();
	}