// testado em IE5,IE6 e Firefox
function getById(id){if(getById.arguments.length==1)return document.getElementById(id);else return getById.arguments[1].getElementById(id);};
function getByName(name){if(getByName.arguments.length==1)return document.getElementsByName(name)[0];else if(getByName.arguments.length==2) return getByName.arguments[1].getElementsByName(name)[0]; else return getByName.arguments[1].getElementsByName(name);};
function go(link){window.location=link;return true;}
function goTop(link){if(top)top.location=link;return true;}
function goParent(link){if(parent)parent.location=link;return true;}
function goPrev(){history.back();return true;}
function troverh(tr){if(tr)tr.style.backgroundColor='#F1B9B8';tr.style.cursor='hand';return true;};
function trout(tr,num){if(tr)if(num==0)tr.style.backgroundColor='#FFFFFF';else tr.style.backgroundColor='#F8DDDC';return true;};

function IsDigit() {return ((event.keyCode >= 48) && (event.keyCode <= 57));}

function IsEmailAddress(email) {
	var s = "", re;
	s = "" + email + "";
	if (s.length == 0) {return true;}
	s = s.replace(/^\s*|\s*$/g, "");
	if (s == "undefined" || s.length < 6) {return false;}
	re = /\s+/g
	if (re.test(s)) {return false;}
	re = /^(\w|[^_]\.|[\-])+((\@){1}([^_]))(([a-z]|[\d]|[\-]|\.)+|([^_]\.[^_])*)+\.[a-z]{2,6}$/i
	if (!re.test(s)) {return false;}
	re = /\.(a[c-gil-oq-uwz]|b[a-bd-jm-or-tvwyz]|c[acdf-ik-orsuvx-z]|d[ejkmoz]|e[ceghr-u]|f[i-kmorx]|g[abd-ilmnp-uwy]|h[kmnrtu]|i[delm-oq-t]|j[emop]|k[eg-imnprwyz]|l[a-cikr-vy]|m[acdghk-z]|n[ace-giloprtuz]|om|p[ae-hk-nrtwy]|qa|r[eouw]|s[a-eg-ort-vyz]|t[cdf-hjkm-prtvwz]|u[agkmsyz]|v[aceginu]|w[fs]|y[etu]|z[admrw]|com|edu|net|org|mil|gov|biz|pro|aero|coop|info|name|museum)$/i
	if (!re.test(s)) {return false;}
	re = /\.\./
	if (re.test(s)) {return false;}
	re = /\@\@/
	return(!re.test(s));
}
function onblur_email(obj){
	if (!IsEmailAddress(obj.value)){
		alert('O email inserido é inválido');
		obj.value='';
		obj.focus();
	}
}

function submeter_pesquisa(flagPT){
	var ctrl, txt_error;
	ctrl = eval(document.all.pesquisa);
	
	if(flagPT=='pt')
		txt_error = 'Por favor, introduza um parâmetro para a pesquisa.'
	else
		txt_error = 'Please, insert a subject to search.';
	
	if(ctrl.value==''){
		alert(txt_error);
		ctrl.focus();
	}else{
		with(document.all)
			form1.funcao.value = 'pesquisar';
			form1.action = 'pesquisa.asp';
			form1.target = '_top';
			form1.submit();
	}
}

function submeter_login(flagPT){
	var ctrl_login, ctrl_password, txt_error;
	
	if(flagPT=='pt')
		txt_error = 'Por favor, introduza o Login e a Password.'
	else
		txt_error = 'Please, insert Login and Password.';
	
	ctrl_login = eval(document.all.login);
	ctrl_password = eval(document.all.password);
	
	if(ctrl_login.value=='' || ctrl_password.value==''){
		alert(txt_error);
		ctrl_login.focus();		
	}else{
		with(document.all){
			form1.funcao.value='login';
			form1.action='index.asp';
			form1.target= '_top';
			form1.submit();
		}
	}
}

function submeter_logout(){
	with(document.all){
		form1.funcao.value='logout';
		form1.action='index.asp';
		form1.target= '_top';
		form1.submit();
	}
}

function submitenter(myfield,e,tipo,flagPT)
{
var keycode;
if (window.event) keycode = window.event.keyCode;
else if (e) keycode = e.which;
else return true;

if (keycode == 13)
   {
   switch(tipo){
		case 'login': submeter_login(flagPT); break;
		case 'pesquisa': submeter_pesquisa(flagPT); break;
   }
   //myfield.form.submit();
   return false;
   }
else
   return true;
}

function change_Language(valor){
	with(document.forms[0]){
		funcao.value='idioma';
		idioma.value=valor;
		action='index.asp';
		target= '_top';
		submit();
	}
}

function menu_on_off(obj,flag){
	if(flag)
		getById(obj).src = '@pics/menu_on.gif'
	else
		getById(obj).src = '@pics/menu_off.gif'
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,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=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}