function verif_email(email) { // vérif validité email par REGEXP
   var reg = /^[a-z0-9._-]+@[a-z0-9.-]{2,}[.][a-z]{2,4}$/
   return reg.exec(email);
}

function validCommand(){
	ret = true;
	
	$$(".obl").each(function(v) { if(v.value == "" && ret == true){ alert("Champ obligatoire : "+v.title); ret = false; return false; } });
	$$(".oblEmail").each(function(v) { if(!verif_email(v.value) && ret == true){ alert("L'adresse email semble invalide"); ret = false; return false; } });
	
	return ret;
	
}

function catalogue()
{
	var prod_cata = $$('.check_cata');
	retEl = 0;
	for(k in prod_cata)
	  {
		var count = 0;
		arEl = $$('#'+prod_cata[k].id+' input.checkbox');

		for(kk in arEl)
		 {
		   if(typeof kk != "string") continue;
		   if(arEl[kk].checked) 
			{
				count = count + 1;
			}
		 }
		if(count > 0)
		{
		retEl = retEl + 1;
		}
		
	  }
	if(retEl < prod_cata.length)
		{
		  alert('Veuillez cocher au moins  technique de réalisation par produit');
		  return false;
		}
	else
	{
	return true;
	}
}


function popup(param,cat) {
  $('popup-catalog').style.display='none';
  new Ajax.Request("/service.php?p_m=txtauteur&p_a=load&p_auteur="+escape(param)+"&p_categorie="+escape(cat),
                   {
                    method: 'get',
                    onComplete: function(t) {
                                  if(t.responseText != ''){
                                    $('popup-catalog').update(t.responseText);

                                    offset = document.viewport.getScrollOffsets();
                                    $('popup-catalog').style.top = (offset.top+200)+'px';

                                    $('popup-catalog').style.display = 'block';
                                  }
                                }
                   });
}

function fondre(i,opacite)
{
	if(opacite > 0)
	  {
	    opacite = parseInt(opacite - 4);
	    document.getElementById('diapo').style.opacity = (opacite / 100);
	    document.getElementById('diapo').style.filter = "alpha(opacity=" + opacite + ")";
	    setTimeout('fondre('+i+','+opacite+')',60);
	  }
	else
	  {
	    i++;
	    if(i == 5){i = 1;}
	    document.getElementById('diapo').src = '/doc/img/photonews'+i+'.jpg';
	    setTimeout('app('+i+',0)',500);
	  }


}

function app(i,opacite)
{
	if(opacite < 100)
	  {
	    opacite = parseInt(opacite + 4);
	    document.getElementById('diapo').style.opacity = (opacite / 100);
	    document.getElementById('diapo').style.filter = "alpha(opacity=" + opacite + ")";
	    setTimeout('app('+i+','+opacite+')',60);
	  }
	else
	  {
	    setTimeout('fondre('+i+',100)',6000);
	  }


}

document.viewport = {
  getScrollOffsets: function() {
    return result = {'left':(window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft),
					 'top': (window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop)};
  }
};