//Declare form globally for use by all sub-routines; will be set in main checkForm() routine
var form;

//text fields that need checked to ensure they aren't blank // "FaxNumber", 
var textfields = new Array("FirstName", "LastName", "EmailAddress","PhoneNumber", "CompanyName", "StreetAddress1", "City", "CU");
	
//'friendly' names of the above text fields
var textfieldsVisible = new Array("First Name", "Last Name", "Email Address","Phone Number","Organization Name", "Street Address", "City", "Concurrent User Licenses");

//combo boxes that need checked to ensure the user chose something
var dropdown = new Array("State", "Country", "OrganizationType", "OrderProduct", "HearAbout", "ProfFunction");
		
// 'friendly' message for above unselected combobox fields
var dropdownVisible = new Array("Please select your State/Province.", "Please select your Country.","Please select an Organization Type.","Please select the library you wish to order.","Please select how you heard about Accounting Research Manager.","Please select your Professional Function.")

/*
=============================================
Function Name:	checkForm()
Parameters:		none	
Description:	Called from the Submit button.  Is the main function to
verify all data input from the enduser using the subroutines below
=============================================
*/
function checkForm() {

	form = document.forms[0];
	var bReturn 
	
	//Check text fields for blank values
	bReturn = false;  //initialize
	bReturn= checktextfields();
	if (bReturn) {
			
		//Checkthat CU field is a number
		bReturn = false;  //initialize
		bReturn= checkCU();
		if (bReturn) {
			
			//Check e-mail input
			bReturn = false;  //initialize
			bReturn = checkemail()		
			if (bReturn ) {
					
				//Check phone/fax input
				bReturn = false;  //initialize
				bReturn = checkphone();
				if (bReturn ) {
				
					//Check combo boxes for valid selection
					bReturn = false;  //initialize
					bReturn = checkdropdowns();
					if (bReturn ) {
						return true;
					} else {
						return false;
					}
					
				} else { 	//phone/fax validation failed
					return false;
				}
			
			} else { 	//e-mail validation failed
				return false;
			}
		
		} else { 	//CU is not numeric
			return false;
		}

	} else { 	//a text input is blank
		return false;
	}
}

/*
=============================================
Function Name:	checktextfields()
Parameters:		none	
Description:	takes the text input variables and verifies	that they
are not blank.  If all valid, calls the checkphone method and if okay,
then calls the checkemail method.
=============================================
*/
function checktextfields() 	{
	var fieldvalue;
	
	//loop thru textfields array and check for null
	for (var counter=0; counter < textfields.length; counter++) {
	
		if (eval('form.' + textfields[counter]) ) { //check that field exists
			fieldvalue = eval('form.' + textfields[counter] + '.value');
			if (fieldvalue.length=="0") {
				alert("Please enter your " + textfieldsVisible[counter] + ".");
				eval('form.' + textfields[counter] + '.focus()');
				return false;
			}	
		}	
	}
	return true;
}

/*
=============================================
Function Name:	checkCU()
Parameters:		none	
Description:  Tests that the value of the CU input is numeric
=============================================
*/
function checkCU() {
	if (form.CU) {
		if (isNumber(form.CU.value)==false) {
			alert('Concurrent User Licenses must be a number.');
			form.CU.focus();
			return false;
		}
	}
	return true;
}

/*
=============================================
Function Name:	checkemail()
Parameters:		none	
Description:  Takes the value of the e-mail address input
field and checks for both valid characters and format
=============================================
*/
function checkemail() 	{
	var BadEmail = new Array();
	BadEmail = document.forms[0].BadDomains.value.split( ', ' )
	var Email = form.EmailAddress.value;
	var exclude=/[^@\-\.\w]|^[_@\.\-]|[\._\-]{2}|[@\.]{2}|(@)[^@]*\1/;
	var check=/@[\w\-]+\./;
	var checkend=/\.[a-zA-Z]{2,4}$/;
	
	//Set support string
	if (form.Support) {
		var support =  "\n\nIf you have any questions, please contact : \n\n" + form.Support.value ;
	} else {
		var support =  "\n\nIf you have any questions, please contact Customer Support";
	}
	
	 if(((Email.search(exclude) != -1) || (Email.search(check))== -1) || (Email.search(checkend) == -1)) { //bad format for the email address
		 alert("Please enter your E-mail Address in the format name@someplace.something\n\nexample: smith@myorganization.com");
		 form.EmailAddress.focus();
		 return false
	 } else { //unsupported e-mail domains
		for (var counter=0; counter < BadEmail.length; counter++) {
			if((Email.toLowerCase().indexOf("@" + BadEmail[counter]) != -1) || (Email.toLowerCase().indexOf("." + BadEmail[counter]) != -1) ) {
				alert("Your e-mail address '" + Email.toLowerCase() + "' is not supported. \n" +
				"Our acceptance policies do not allow the use of \n" +
				"personal e-mail addresses.\n\n" +
				"Please provide your e-mail address with your \n" +
				"organization's e-mail extension.\n" +
				"Example: johnsmith@organization.com" + support)

				form.EmailAddress.focus();
				form.EmailAddress.select();
				return false;
			}			
		}
		//legit email address
	  	return true;
	 }
}

/*
=============================================
Function Name:	checkphone()
Parameters:		none	
Description:  verifies that only legit characters are in the Phone and Fax
inputs, and that its length is sufficient for a valid phone/fax number
=============================================
*/
function checkphone() {
	var ValidCharacters = "0123456789()-+ .";
	var PhoneNumber = form.PhoneNumber.value
	var FaxNumber = form.FaxNumber.value
	
	if (PhoneNumber.length < 10) {
		alert('Phone number must be at least ten digits.');
		form.PhoneNumber.focus();
		return false;
	}
	if (FaxNumber.length < 10 & FaxNumber.length > 0) {
		alert('Fax number must be at least ten digits.');
		form.FaxNumber.focus();
		return false;
	}

	for (var counter=0; counter <= PhoneNumber.length - 1; counter++) {
		if (ValidCharacters.indexOf(PhoneNumber.charAt(counter)) == -1) {
			alert('Please enter your phone number using numeric values only.')
			form.PhoneNumber.focus();
			return false;
		}
	}
	for (var counter=0; counter <= FaxNumber.length - 1; counter++) {
		if (ValidCharacters.indexOf(FaxNumber.charAt(counter)) == -1) {
			alert('Please enter your phone number using numeric values only.')
			form.FaxNumber.focus();
			return false;
		}
	}
	return true;
}

	
/*
=============================================
Function Name:	checkdropdowns()
Parameters:		none	
Description:  loops thru all defined dropdown combo boxes and 
verifies that the user has selected a value for each of them.	
=============================================
*/
function checkdropdowns() 	{
	var index;
	//Loop thru defined combo fields
	for (var counter=0; counter < dropdown.length; counter++) {
	
		//check that field exists
		if (eval('form.' + dropdown[counter]) ) { 
			index = eval('form.' + dropdown[counter] + '.selectedIndex');
			if (index == 0) 	{
				alert(dropdownVisible[counter]); //return defined error message
				eval('form.' + dropdown[counter] + '.focus()');
				return false;
			}	
		}	
	}
	return true;	
}


/*
=============================================
Function Name:  getCookieData(labelName)	
Parameters:  labelName (cookie label to retrieve, in case several exist)
Description: Retrieves cookie value for passed-in lable. Called from 
JScript directly on form to retrieve any ARM referrer value in 'ARMRef'
=============================================
*/
function getCookieData(labelName) {
	var labelLen = labelName.length
	//Read cookie property only once for speed
	var cookieData = document.cookie
	var cLen = cookieData.length
	var i = 0
	var cEnd
	while (i < cLen) {
		var j = i + labelLen
		if (cookieData.substring(i,j) == labelName && cookieData.substring(j,j+1) == "=") {  // added cookieData.substring(j,j+1) to handle partial name matches
			cEnd = cookieData.indexOf( ";", j)
			if (cEnd == -1) {
				cEnd = cookieData.length
			}
			return unescape(cookieData.substring(j + 1, cEnd))
		}
		i++
	}
	return null 
}

/*
=============================================
Function Name:	isNumeric(sVal)
Parameters:		sVal  (string to be validated for numeric chars)
Description:	Called from the Submit button.  Is the main function to
verify all data input from the enduser using the subroutines below
=============================================
*/
function isNumber(sVal) {
	var ValidChars = "01234567890"
	var sChar
	
	for (i = 0 ; i < sVal.length ; i++) {
	sChar = sVal.charAt(i)
		if (ValidChars.indexOf(sChar) == -1 ) {
			return false;
		}
	}
	return true;
}

/*
====================================
Open new browser window, centered over the parent
====================================
*/
function openWindowCenter (vurl, vname, vfeatures, wd, ht) {

	//screen info
	var sw=screen.width; 
	var sh=screen.height; 
	
	//parent position info 
	//===========
	var isFail = false //flag in case params not retrieved as intended
	
	//main window top and Left
	if (window.top.window.screenX && navigator.appName != 'Opera') { //Mozilla/NS compatible
		var wLeft = window.top.window.screenX
		var wTop = window.top.window.screenY
		var pTyp = 1
	} else if (window.top.screenLeft) {  //IE-compatible
		var wLeft = window.top.screenLeft
		var wTop = window.top.screenTop - 80  //70 is to compensate for menu, toolbar, etc. chrome height not incl in screenTop
		var pTyp = 2
	} else {
		var wLeft = 0
		var wTop = 0
		var pTyp = 3
		isFail = true
	}
	
	//main window width and height
	if (parent.top.window.outerWidth) { //Mozilla/NS compatible
		var wWd = parent.top.window.outerWidth
		var wHt = parent.top.window.outerHeight
		pTyp += 'a'
	} else if (parent.top.window.document.body) {   //IE-compatible
		var wWd = parent.top.window.document.body.offsetWidth
		var wHt = parent.top.window.document.body.offsetHeight
		pTyp += 'b'
	} else {
		var wWd = 0
		var wHt = 0
		pTyp += 'c'
		isFail = true
	}
	
	//alert('wLeft: ' + wLeft + '\nwTop: ' + wTop+ '\nwWd: ' + wWd + '\nwHt: ' + wHt + '\nType: ' + pTyp + '\nBrowser: ' + navigator.appName + '\nVersion: ' + bVersion)
	//return false;
	
	//Set final Top and Left positions
	if (isFail) {  //simply load screen-center if any dimension failures occur
		var left= Math.round( (sw - wd)/2 ); 
		var top= Math.round( (sh - ht)/2 ); 
	} else {
		var left= wLeft + Math.round( (wWd - wd) / 2) ;
		var top= wTop + Math.round( (wHt - ht) / 2);
	}
				
	var optsall='location,menubar,resizable,scrollbars,status,titlebar,title,toolbar,directories,width=' + wd +',height=' + ht + ',innerWidth=' + wd +',Height=' + ht + ",top=" + top + ",left=" + left
	var opts= vfeatures + ',width=' + wd +',height=' + ht + ',innerWidth=' + wd +',innerHeight=' + ht + ",top=" + top + ",left=" + left

	wprint = window.open(vurl,vname, opts, false ); 
	wprint.window.focus();

}