/*
-------------------------------------------------------------------------
					Validation Script in JavaScript
								Version 2.0
Copyright 2003 JavaScript-coder.com. All rights reserved.
You use this script in your Web pages, provided these opening credit lines are kept intact.
The Form validation script is distributed free from JavaScript-Coder.com

MODIFIED BY SAIBAL - 08/02/2007
-------------------------------------------------------------------------
*/

function Validator(frmname)
{
	//this.formobj=document.forms[frmname];
	this.formobj= document.getElementById(frmname);

	if(!this.formobj)
	{
		alert("BUG: couldnot get Form object "+frmname);
		return;
	}
	if(this.formobj.onsubmit)
	{
		this.formobj.old_onsubmit 	= this.formobj.onsubmit;
		this.formobj.onsubmit			=null;
	} else {
		this.formobj.old_onsubmit 	= null;
	}
	this.formobj.onsubmit = form_submit_handler;
	this.addValidation = add_validation;
	this.setAddnlValidationFunction = set_addnl_vfunction;
	this.clearAllValidations = clear_all_validations;
}
function set_addnl_vfunction(functionname)
{
	this.formobj.addnlvalidation = functionname;
}
function clear_all_validations()
{
	for(var itr=0;itr < this.formobj.elements.length;itr++)
	{
		this.formobj.elements[itr].validationset = null;
	}
}
function form_submit_handler()
{
	for(var itr=0;itr < this.elements.length;itr++)
	{
		if(this.elements[itr].validationset && !this.elements[itr].validationset.validate())
		{
			return false;
		}
	}
	if(this.addnlvalidation)
	{
		str =" var ret = "+this.addnlvalidation+"()";
		eval(str);
		if(!ret) return ret;
	}
	return true;
}
function add_validation(itemname,descriptor,errstr,moredata)
{
	if(!this.formobj)
	{
		alert("BUG: the form object is not set properly");
		return;
	}//if
	var itemobj = this.formobj[itemname];
	if(!itemobj)
	{
		alert("BUG: Couldnot get the input object named: "+itemname);
		return;
	}
	if(!itemobj.validationset)
	{
		itemobj.validationset = new ValidationSet(itemobj);
	}
	itemobj.validationset.add(descriptor,errstr,moredata);
}
function ValidationDesc(inputitem,desc,error,moredata)
{
	this.desc=desc;
	this.error=error;
	this.itemobj = inputitem;
	this.validate=vdesc_validate;
	this.more =moredata;
}
function vdesc_validate()
{
	if(!V2validateData(this.desc,this.itemobj,this.error,this.more))
	{
		this.itemobj.focus();
		this.itemobj.style.backgroundColor = 'red';
		this.itemobj.style.color = 'white';
		return false;
	}
	return true;
}
function ValidationSet(inputitem)
{
	this.vSet = new Array();
	this.add = add_validationdesc;
	this.validate = vset_validate;
	this.itemobj = inputitem;
}
function add_validationdesc(desc,error,moredata)
{
	this.vSet[this.vSet.length]= new ValidationDesc(this.itemobj,desc,error,moredata);
}
function vset_validate()
{
	for(var itr=0;itr<this.vSet.length;itr++)
	{
		if(!this.vSet[itr].validate())
		{
			return false;
		}
	}
	return true;
}
function validateEmailv2(email)
{
	// a very simple email validation checking.
	// you can add more complex email checking if it helps
	var splitted = email.match("^(.+)@(.+)$");
	if(splitted == null) return false;
	if(splitted[1] != null )
	{
		var regexp_user=/^\"?[\w-_\.]*\"?$/;
		if(splitted[1].match(regexp_user) == null) return false;
	}
	if(splitted[2] != null)
	{
		var regexp_domain=/^[\w-\.]*\.[A-Za-z]{2,4}$/;
		if(splitted[2].match(regexp_domain) == null)
		{
			var regexp_ip =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
			if(splitted[2].match(regexp_ip) == null) return false;
		}// if
		return true;
	}
	return false;
}
function V2validateData(strValidateStr,objValue,strError,moredata)
{
	var epos 			= strValidateStr.search("=");
	var command  	= "";
	var cmdvalue 	= "";
	var more = moredata;
	if(epos >= 0)
	{
		command  = strValidateStr.substring(0,epos);
		cmdvalue = strValidateStr.substr(epos+1);
	} else {
		command = strValidateStr;
	}
	switch(command)
	{
		case "req":
		case "required":
		{
			if(eval(objValue.value.length) == 0)
			{
				if(!strError || strError.length ==0)
				{
					strError = objValue.name + " : Campo obbligatorio";
				}//if
				alert(strError);
				return false;
			}
			break;
		}//case required

		case "maxlength":
		case "maxlen":
		{
			if(eval(objValue.value.length) >  eval(cmdvalue))
			{
				if(!strError || strError.length ==0)
				{
					strError = objValue.name + " : lunghezza massima "+cmdvalue+" caratteri ";
				}//if
				alert(strError + "\n[lunghezza attuale = " + objValue.value.length + " ]");
				return false;
			}//if
			break;
		}//case maxlen

		case "minlength":
		case "minlen":
		{
			if(eval(objValue.value.length) <  eval(cmdvalue))
			{
				if(!strError || strError.length ==0)
				{
					strError = objValue.name + " : " + cmdvalue + " characters minimum  ";
				}//if
				alert(strError + "\n[Current length = " + objValue.value.length + " ]");
				return false;
			}//if
			break;
		}//case minlen

		case "alnum":
		case "alphanumeric":
		{
			var charpos = objValue.value.search("[^A-Za-z0-9]");
			if(objValue.value.length > 0 &&  charpos >= 0)
			{
				if(!strError || strError.length ==0)
				{
					strError = objValue.name+": Only alpha-numeric characters allowed ";
				}//if
				alert(strError + "\n [Error character position " + eval(charpos+1)+"]");
				return false;
			}//if
			break;
		}//case alphanumeric

		case "num":
		case "numeric":
		{
			var charpos = objValue.value.search("[^0-9]");
			if(objValue.value.length > 0 &&  charpos >= 0)
			{
				if(!strError || strError.length ==0)
				{
					strError = objValue.name+": sono ammessi solo caratteri numerici ";
				}//if
				alert(strError + "\n [Posizione carattere errato " + eval(charpos+1)+"]");
				return false;
			}//if
			break;
		}//numeric

		case "numeric_point":
		{
			var charpos = objValue.value.search("[^0-9.]");
			var checkpoint = objValue.value.substr(objValue.value.length-3,1);
			if(objValue.value.length <= 0)
			{
				if(!strError || strError.length == 0)
				{
					strError = "Campo obbligatorio";
				}//if
				alert(strError);
				return false;
			}
			if(objValue.value.length > 0 && checkpoint != ".")
			{
				if(!strError || strError.length ==0)
				{
					strError = "Le ultime due cifre devono essere separate da punto";
				}
				alert(strError);
				return false;
			}
			if(objValue.value.length > 0 && charpos >= 0)
			{
				if(!strError || strError.length ==0)
				{
					strError = "Solo caratteri numerici";
				}
				alert(strError);
				return false;
			}
			break;
		}//numeric

		case "numeric_point2":
		{
			var charpos = objValue.value.search("[^0-9.]");
			var checkpoint = objValue.value.substr(objValue.value.length-3,1);
			if(objValue.value.length > 0 && checkpoint != ".")
			{
				if(!strError || strError.length ==0)
				{
					strError = "Le ultime due cifre devono essere separate da punto";
				}
				alert(strError);
				return false;
			}
			if(objValue.value.length > 0 && charpos >= 0)
			{
				if(!strError || strError.length ==0)
				{
					strError = "Solo caratteri numerici";
				}
				alert(strError);
				return false;
			}
			break;
		}//numeric

		case "alphabetic":
		case "alpha":
		{
			var charpos = objValue.value.search("[^A-Za-z]");
			if(objValue.value.length > 0 &&  charpos >= 0)
			{
				if(!strError || strError.length ==0)
				{
					strError = objValue.name+": Only alphabetic characters allowed ";
				}//if
				alert(strError + "\n [Error character position " + eval(charpos+1)+"]");
				return false;
			}//if
			break;
		}//alpha

		case "alnumhyphen":
		{
			var charpos = objValue.value.search("[^A-Za-z0-9\-_]");
			if(objValue.value.length > 0 &&  charpos >= 0)
			{
				if(!strError || strError.length ==0)
				{
					strError = objValue.name+": characters allowed are A-Z,a-z,0-9,- and _";
				}//if
				alert(strError + "\n [Error character position " + eval(charpos+1)+"]");
				return false;
			}//if
			break;
		}

		case "email":
		{
			if(!validateEmailv2(objValue.value))
			{
				if(!strError || strError.length ==0)
				{
					strError = objValue.name+": Inserisci un indirizzo valido ";
				}//if
				alert(strError);
				return false;
			}//if
			break;
		}//case email

		case "lt":
		case "lessthan":
		{
			if(isNaN(objValue.value))
			{
				alert(objValue.name+": Should be a number ");
				return false;
			}//if
			if(eval(objValue.value) >=  eval(cmdvalue))
			{
				if(!strError || strError.length ==0)
				{
					strError = objValue.name + " : value should be less than "+ cmdvalue;
				}//if
				alert(strError);
				return false;
			}//if
			break;
		}//case lessthan

		case "gt":
		case "greaterthan":
		{
			if(isNaN(objValue.value))
			{
				alert(objValue.name+": Should be a number ");
				return false;
			}//if
			if(eval(objValue.value) <=  eval(cmdvalue))
			{
				if(!strError || strError.length ==0)
				{
					strError = objValue.name + " : value should be greater than "+ cmdvalue;
				}//if
				alert(strError);
				return false;
			}//if
			break;
		}//case greaterthan

		case "regexp":
		{
			if(!objValue.value.match(cmdvalue))
			{
				if(!strError || strError.length ==0)
				{
					strError = objValue.name+": Invalid characters found ";
				}//if
				alert(strError);
				return false;
			}//if
			break;
		}//case regexp

		case "dontselect":
		{
			if(objValue.selectedIndex == null)
			{
				alert("BUG: dontselect command for non-select Item");
				return false;
			}
			if(objValue.selectedIndex == eval(cmdvalue))
			{
				if(!strError || strError.length ==0)
				{
					strError = objValue.name+": Seleziona una opzione";
				}//if
				alert(strError);
				return false;
			}
			break;
		}//case dontselect

		case "mycheckbox":
		{
			if(objValue.checked == false)
			{
				if(!strError || strError.length ==0)
				{
					strError = objValue.name+": Attenzione! Opzione obbligatoria";
				}
				alert(strError);
				return false;
			}
			break;
		}//case dontselect

		case "mycheckbox_byid":
		{
			if(document.getElementById(objValue.id).checked == false)
			{
				if(!strError || strError.length ==0)
				{
					strError = objValue.id+": Attenzione! Opzione obbligatoria";
				}
				alert(strError);
				return false;
			}
			break;
		}//case dontselect

		case "checkmore":
		{
			var check_more =objValue.value.indexOf(moredata);
			if (check_more < 0)
			{
				return confirm("Non hai messo il tag " +moredata+ " per dividere l'articolo. Confermi la scelta?");
			}
			break;
		}//case dontselect
	}//switch
	return true;
}
function random_cookiename(idhidden)
{
	crname = Math.floor(Math.random()*500);
	document.getElementById(idhidden).value = crname;

	return crname;
}

/*
	var frmvalidator  = new Validator("myform");
	frmvalidator.addValidation("FirstName","req","Please enter your First Name");
	frmvalidator.addValidation("FirstName","alpha");
	frmvalidator.addValidation("Email","email");
	frmvalidator.addValidation("Country","dontselect=0");
*/