function crearCookie(pNom, pValor, pDiesCaducitat)
 {
  if (pNom!='') {
   var txt= pNom + '=' + escape(pValor);
   if (pDiesCaducitat != '') {
        var dataCad = new Date();
        dataCad.setTime(dataCad.getTime() + pDiesCaducitat*24*60*60*1000);
        txt += '; expires=' + dataCad.toGMTString();
   }
   document.cookie = txt;
  }
 }

 function llegirCookie(pNom)
 {
 var valor=null;
 var parell;
 if (pNom!='') {
  var dc=document.cookie;
  if (dc.length > 0) {
    dc=dc.split(';');
	var i=0;
	while (i<dc.length) {
	   parell=dc[i].split('=');
	   if (i!=0) parell[0]=parell[0].replace(/^ /,'');
	   ++i;
	   if (parell[0]==pNom) valor=unescape(parell[1]);
	}
  }
 }
 return valor;
 }

 function esborraCookie(pNom)
 {
  var txt= pNom + '= null';
  var dataCad = new Date(0);
  txt += '; expires=' + dataCad.toGMTString();
  document.cookie = txt;
 }
 
 function pasParams( pag, noms ) {
              pag += '?'
              vect = noms.split( ',' )
              for ( i=0; i<vect.length; i++ ) {
                pag += vect[i] + '=' + escape( eval( vect[i] ) ) + '&'
              }
              pag = pag.substring( 0, pag.length-1 )
              location.href = pag
            }