// Generic Form Validation
// MORACOM.com
var checkObjects	= new Array();
var errors		= "";
var returnVal		= false;
var language		= new Array();
language["header"]	= "Please fill out the following field(s):";
language["start"]	= "* ";
language["field"]	= " 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 only digits.";
language["email"]	= " must contain a valid e-mail address.";
// -----------------------------------------------------------------------------
// 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);
}
	
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++)
		{
			
			var 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";
				}
				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";
				}
				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";
				} 
				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";
				} 
				else if (!validateObject.min && !validateObject.max && validateObject.len <= 0)
				{ 
					errors += language['start'] + language['field'] + validateObject.HTMLname + language['require'] + "\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"; 
					}
			}
		}
	}

	if (errors)
	{
		alert(language["header"].concat("\n" + errors));
		errors = "";
		returnVal = false;
	}
	else
	{
		returnVal = true;
		document.getElementById("validated").value = "1";
	}
}