// Generic Form Validation
// Felippe Mora (felippe.mora@unilever.com)
var checkObjects	= new Array();
var errors		= "";
var returnVal		= false;
var language		= new Array();
var secureKey = "";
var verifySecureKey = "";
var digitalSignature = "";
language["header"]			= "Please correct the following issue(s):";
language["start"]			= "=> ";
language["field"]			= "";
language["require"]			= " is required";
language["min"]				= " and must consist of at least ";
language["max"]				= " and must not contain more than ";
language["minmax"]			= " and no more than ";
language["chars"]			= " characters";
language["num"]				= " and must contain number characters";
language["email"]			= " email must be a valid e-mail address";
language["secure"]			= "Security Code does not match";
language["monthOfBirth"]	= "Must enter month of birth"
// -----------------------------------------------------------------------------
// define - Call this function in the beginning of the page. I.e. onLoad.
// n = name of the input field (Required)
// type= string, num, email (Required)
// min = the value must have at least [min] characters (Optional)
// max = the value must have maximum [max] characters (Optional)
// d = (Optional)
// -----------------------------------------------------------------------------
function define(n, type, HTMLname, min, max, d) 
{
	var p;
	var i;
	var x;
	if (!d) d = document;
	if ((p=n.indexOf("?"))>0&&parent.frames.length) 
		{
			d = parent.frames[n.substring(p+1)].document;
			n = n.substring(0,p);
		}
	if (!(x = d[n]) && d.all) x = d.all[n];
	for (i = 0; !x && i < d.forms.length; i++) 
		{
			x = d.forms[i][n];
		}
	for (i = 0; !x && d.layers && i < d.layers.length; i++) 
		{
			x = define(n, type, HTMLname, min, max, d.layers[i].document);
			return x;       
		}
	eval("V_"+n+" = new formResult(x, type, HTMLname, min, max);");
	checkObjects[eval(checkObjects.length)] = eval("V_"+n);
}// end of define function

function formResult(form, type, HTMLname, min, max) 
{
	this.form = form;
	this.type = type;
	this.HTMLname = HTMLname;
	this.min  = min;
	this.max  = max;
}

function validate() 
{
	if (checkObjects.length > 0) 
	{
		errorObject = "";
		for (i = 0; i < checkObjects.length; i++) 
		{
			validateObject = new Object();
			validateObject.form = checkObjects[i].form;
			validateObject.HTMLname = checkObjects[i].HTMLname;
			validateObject.val = checkObjects[i].form.value;
			validateObject.len = checkObjects[i].form.value.length;
			validateObject.min = checkObjects[i].min;
			validateObject.max = checkObjects[i].max;
			validateObject.type = checkObjects[i].type;
			if (validateObject.type == "num" || validateObject.type == "string") 
			{
				if ((validateObject.type == "num" && validateObject.len <= 0) || (validateObject.type == "num" && isNaN(validateObject.val))) 
				{ 
					errors += language['start'] + language['field'] + validateObject.HTMLname + language['require'] + language['num'] + "\n\n";
				} 
				else if (validateObject.min && validateObject.max && (validateObject.len < validateObject.min || validateObject.len > validateObject.max)) 
				{ 
					errors += language['start'] + language['field'] + validateObject.HTMLname + language['require'] + language['min'] + validateObject.min + language['minmax'] + validateObject.max+language['chars'] + "\n\n";
				} 
				else if (validateObject.min && !validateObject.max && (validateObject.len < validateObject.min)) 
				{ 
					errors += language['start'] + language['field'] + validateObject.HTMLname + language['require'] + language['min'] + validateObject.min + language['chars'] + "\n\n";
				} 
				else if (validateObject.max && !validateObject.min &&(validateObject.len > validateObject.max)) 
				{ 
					errors += language['start'] + language['field'] + validateObject.HTMLname + language['require'] + language['max'] + validateObject.max + language['chars'] + "\n\n";
				} 
				else if (!validateObject.min && !validateObject.max && validateObject.len <= 0) 
				{
					errors += language['start'] + language['field'] + validateObject.HTMLname + language['require'] + "\n\n";
				}
			} 
			else if(validateObject.type == "email") 
			{
				// Checking existense of "@" and ".". 
				// Length of must >= 5 and the "." must 
				// not directly precede or follow the "@"
				if ((validateObject.val.indexOf("@") == -1) || (validateObject.val.charAt(0) == ".") || (validateObject.val.charAt(0) == "@") || (validateObject.len < 6) || (validateObject.val.indexOf(".") == -1) || (validateObject.val.charAt(validateObject.val.indexOf("@")+1) == ".") || (validateObject.val.charAt(validateObject.val.indexOf("@")-1) == ".")) 
				{ 
					errors += language['start'] + language['field'] + validateObject.HTMLname + language['email'] + "\n\n"; 
				}
			 }//end main if statement
		  }//end for loop

		secureKey = document.forms["emailform"]["secureKey"].value;
		verifySecureKey = document.forms["emailform"]["verifySecureKey"].value;
		secureKey = secureKey.replace(/^\s+|\s+$/g, '') ;
		verifySecureKey = verifySecureKey.replace(/^\s+|\s+$/g, '') ;
		if (secureKey != verifySecureKey)
			{
				//secureKey = "no";
				//alert(secureKey+"|"+verifySecureKey+"|")
				errors += language['start'] + language['field'] + language['secure'] + "\n\n"; 
			}
		
		//monthOfBirth = document.forms["emailform"]["monthOfBirth"].value;
		//monthOfBirth = monthOfBirth.replace(/^\s+|\s+$/g, '') ;
		//if (monthOfBirth == "")
		//	{
		//		//secureKey = "no";
		//		//alert(secureKey+"|"+verifySecureKey+"|")
		//		errors += language['start'] + language['field'] + language['monthOfBirth'] + "\n\n"; 
		//	}	

			
	}
	if (errors) 
	{
		alert(language["header"].concat("\n\n" + errors));
		errors = "";
		returnVal = false;
	} 
	else 
	{
		returnVal = true;
	}
}// end of validate funciton