/*
  -------------------------------------------------------------------------
	                    JavaScript Form Validator
                                Version 2.0.2
	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

	You may please add a link to JavaScript-Coder.com,
	making it easy for others to find this script.
	Checkout the Give a link and Get a link page:
	http://www.javascript-coder.com/links/how-to-link.php

    You may not reprint or redistribute this code without permission from
    JavaScript-Coder.com.

	JavaScript Coder
	It precisely codes what you imagine!
	Grab your copy here:
		http://www.javascript-coder.com/
    -------------------------------------------------------------------------
*/
function Validator(frmname)
{
  this.formobj=document.forms[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)
{
  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);

}
function ValidationDesc(inputitem,desc,error)
{
  this.desc=desc;
	this.error=error;
	this.itemobj = inputitem;
	this.validate=vdesc_validate;
}
function vdesc_validate()
{
 if(!V2validateData(this.desc,this.itemobj,this.error))
 {
    this.itemobj.focus();
		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)
{
  this.vSet[this.vSet.length]=
	  new ValidationDesc(this.itemobj,desc,error);
}
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
    if(email.length <= 0)
	{
	  return true;
	}
    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 =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
	    if(splitted[2].match(regexp_ip) == null) return false;
      }// if
      return true;
    }
return false;
}
function V2validateData(strValidateStr,objValue,strError)
{
	/*var epos2 = objValue.search("=");
	var command2="";
	var cmdvalue2="";
	if(epos2 >= 0)
    {
     command2  = objValue.substring(0,epos2);
     cmdvalue2 = objValue.substr(epos2+1);
    }
    else
    {
     command2 = objValue;
    } */
    var epos = strValidateStr.search("=");
   var command="";
    var  cmdvalue = "";
    if(epos >= 0)
    {
     command  = strValidateStr.substring(0,epos);
     cmdvalue = strValidateStr.substr(epos+1);
    }
    else
    {
     command = strValidateStr;
    }
    switch(command)
    {
		case "tele":
		 {
		   var regexp_tele =/^[0-9]{1,8}$/;
	       if(objValue.value.match(regexp_tele) != null)
		    {
			  if(!strError || strError.length ==0)
              {
                strError = objValue.name + " : Required Field";
              }//if
              alert(strError);
              return false;
           }//if
		   break;
		 }//case tele
		case "numa":
		 {
		   var regexp_numa =/^([0-9]{4})\/([0-9]{2})$/;
	       if(objValue.value.match(regexp_numa) == null)
		    {
			  if(!strError || strError.length ==0)
              {
                strError = objValue.name + " : Required Field";
              }//if
              alert(strError);
              return false;
           }//if
		   break;
		 }//case numa
		 case "numr":
		 {
		   var regexp_numr =/^([0-9]{0,2})[,]{0,1}([0-9]{0,2})$/;
	       if(objValue.value.match(regexp_numr) == null)
		    {
			  if(!strError || strError.length ==0)
              {
                strError = objValue.name + " : Required Field";
              }//if
              alert(strError);
              return false;
           }//if
		   break;
		 }//case numr
        case "req":
        case "required":
         {
           if(eval(objValue.value.length) == 0)
           {
              if(!strError || strError.length ==0)
              {
                strError = objValue.name + " : Required Field";
              }//if
              alert(strError);
              return false;
           }//if
           break;
         }//case required
        case "maxlength":
        case "maxlen":
          {
             if(eval(objValue.value.length) >  eval(cmdvalue))
             {
               if(!strError || strError.length ==0)
               {
                 strError = objValue.name + " : "+cmdvalue+" characters maximum ";
               }//if
               alert(strError + "\n[Tamanho actual = " + 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[Tamanho actual = " + 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 [Erro na posição " + 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+": Only digits allowed ";
                }//if
                alert(strError + "\n [Erro na posição " + eval(charpos+1)+"]");
                return false;
              }//if
              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 [Erro na posição " + 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 [Erro na posição " + eval(charpos+1)+"]");
                return false;
              }//if
			break;
			}
        case "email":
          {
               if(!validateEmailv2(objValue.value))
               {
                 if(!strError || strError.length ==0)
                 {
                    strError = objValue.name+": Enter a valid Email address ";
                 }//if
                 alert(strError);
                 return false;
               }//if
           break;
          }//case email

		case "mq":
        case "menorque":
         {
		 	var regexp_numr =/^([0-9]{0,2})[,]{0,1}([0-9]{0,2})$/;
		 	var splitted = objValue.value.match(regexp_numr);
            if(isNaN(splitted[1]))
            {
              alert(objValue.name+": Should be a number ");
              return false;
            }//if
            if(eval(splitted[1]) >=  eval(cmdvalue))
            {
              if(!strError || strError.length ==0)
              {
                strError = objValue.name + " : value should be less than "+ cmdvalue;
              }//if
              alert(strError);
              return false;
             }//if
			 if (eval(splitted[1])==20 && eval(splitted[2])>0)
			 {
				alert(strError);
              	return false;
			 }
            break;
         }//case menorque
		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.length > 0)
			{
	            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+": Please Select one option ";
              }//if
              alert(strError);
              return false;
             }
             break;
         }//case dontselect
		 case "nomedisc":
		 {
			 	if(objValue.selectedIndex!=0)
				{

								if (document.registo2.elements["frequencia"+eval(cmdvalue)].selectedIndex==0)
								{
			 						alert("Falta escolher se tem frequência na Disciplina atrasada, na linha "+eval(cmdvalue));
                                    document.registo2.elements["frequencia"+eval(cmdvalue)].focus();
                                    this.itemobj="frequencia"+eval(cmdvalue);
									return false;
								}
                                if (document.registo2.elements["nota"+eval(cmdvalue)].value=="")
								{
			 						alert("Falta introduzir a nota da Cadeira da Disciplina atrasada, na linha "+eval(cmdvalue));
                                    document.registo2.elements["nota"+eval(cmdvalue)].focus();
                                     this.itemobj="nota"+eval(cmdvalue);
									return false;
								}
                                if (document.registo2.elements["matriculase"+eval(cmdvalue)].selectedIndex==0)
								{
			 						alert("Falta escolher se se Matricula na Disciplina atrasada, na linha "+eval(cmdvalue));
                                    document.registo2.elements["matriculase"+eval(cmdvalue)].focus();
                                    this.itemobj="matriculase"+eval(cmdvalue);
									return false;
								}
                                if (document.registo2.elements["turma"+eval(cmdvalue)].value=="" && document.registo2.elements["matriculase"+eval(cmdvalue)].value=="1")
								{
			 						alert("Falta introduzir a Turma da Disciplina atrasada, na linha "+eval(cmdvalue));
                                    document.registo2.elements["turma"+eval(cmdvalue)].focus();
                                     this.itemobj="turma"+eval(cmdvalue);
									return false;
								}

				}
				if(objValue.selectedIndex==0 && (document.registo2.elements["frequencia"+eval(cmdvalue)].selectedIndex!=0 || document.registo2.elements["nota"+eval(cmdvalue)].value!="" || document.registo2.elements["matriculase"+eval(cmdvalue)].selectedIndex!=0 || document.registo2.elements["ta"+eval(cmdvalue)].value!="" || document.registo2.elements["turma"+eval(cmdvalue)].value!=""))
				{


			 						alert("Falta preencher o Nome da Disciplina atrasada na linha "+eval(cmdvalue));
									return false;


				}
				break;
		 }
         case "verificadisc":
		 {
                for(i=0;i<document.f3.discmat.options.length;i++)
                {

                    if ( document.f3.discmat.options[i].selected )
                    {
                    	for (j=1;j<9;j++)
                        {
                        	if(document.f3.discmat.options[i].value==document.registo2.elements["nomedisc"+j].value)
                            {
                            	alert("Escolheu a mesma disciplina quer na lista das disciplinas do ano em que o aluno se inscreve, quer na lista das disciplinas atrasadas na "+j+"ª linha. Só pode aparecer únicamente numa destas opções");
                                return false;
                            }
                        }
                    }
                }

				break;
		 }
		 case "trab": //46,47,48
		 {
			 	if (document.registo2.trabalhador.value=="1" && document.registo2.empresa.value=="")
				{
						alert("Falta preencher o Nome da Empresa onde o Aluno trabalha");
						return false;
				}
				if (document.registo2.empresa.value!="" && document.registo2.trabalhador.value=="")
				{
						alert("Tem que escolher se é trabalhador ou não");
						return false;
				}
				if (document.registo2.tlfempresa.value!="" && document.registo2.trabalhador.value=="")
				{
						alert("Tem que escolher se é trabalhador ou não");
						return false;
				}
				if (document.registo2.tlfempresa.value!="" && document.registo2.empresa.value=="")
				{
						alert("Falta preencher o Nome da Empresa onde o Aluno trabalha");
						return false;
				}
				if (document.registo2.trabalhador.value=="0" && (document.registo2.empresa.value!="" || document.registo2.tlfempresa.value!=""))
				{
						alert("Escolheu que o Aluno não é Trabalhador mas tem o campo do Nome da Empresa ou do Telefone preenchido");
						return false;
				}
				break;
		 }
         case "turma":
         {
           if (document.registo2.discmat.value==1)
    	   {
           		if(eval(objValue.value.length) == 0)
           		{
              		if(!strError || strError.length ==0)
              		{
                		strError = objValue.name + " : Required Field";
              		}//if
              		alert(strError);
              		return false;
           		}//if
           }
           break;
         }//case turma
         case "news":
         {
           if (document.registo.newsletter.checked==true)
    	   {
           		if(eval(document.registo.email.value.length) == 0)
           		{
              		if(!strError || strError.length ==0)
              		{
                		strError = objValue.name + " : Required Field";
              		}//if
              		alert(strError);
              		return false;
           		}//if
           }
           break;
         }//case newsletter
         case "pass":
         {
           if (document.registo.password.value!==document.registo.password2.value)
    	   {
                	if(!strError || strError.length ==0)
              		{
                		strError = objValue.name + " : Required Field";
              		}//if
              		alert(strError);
              		return false;
           		
           }
           break;
         }//case pass
    }//switch
    return true;
}
/*
	Copyright 2003 JavaScript-coder.com. All rights reserved.
*/