/**
* Funciones comunes
* @author:  Victor Caballero
* @since:   26-02-2009
* @version: 1.0
*/
function contar_checkbox( formid, obj )
{
  var f = document.getElementById(formid);
  var num = f.elements.length;
  var cuenta = 0; 
  for (var i=0; i <= num-1; i++) {
	elemento=f.elements[i];
	if(elemento.type=='checkbox'){
		if( (elemento.checked) && (elemento.name == obj) ){ cuenta++; }
	}
  }
  return(cuenta);
}
function valores_checkbox( formid, obj )
{
  var f = document.getElementById(formid);
  var num = f.elements.length;
  var valores = ""; 
  for (var i=0; i <= num-1; i++) {
	elemento=f.elements[i];
	if(elemento.type=='checkbox'){
		if( (elemento.checked) && (elemento.name == obj) ){ valores += (valores!="") ? ","+elemento.value : elemento.value }
	}
  }
  return valores;
}
function sel_checkbox(formid,obj,valor)
{
  var f = document.getElementById(formid);
  var num = f.elements.length;
  for (var i=0; i <= num-1; i++){
	elemento=f.elements[i];
	if( (elemento.type=='checkbox') && (elemento.name == obj) ){
		elemento.checked=valor;
	}
  }
  return;
}
function contar_select_multiple( id )
{
  var elemento = document.getElementById(id);
  var num = elemento.length;
  var cuenta = 0;
  for(j=0 ; j<elemento.options.length ; j++){ 
	if(elemento.options[j].selected) cuenta++;		
  }
  return(cuenta);
}
function cuenta_terminos( formid, obj )
{
  var f = document.getElementById(formid);
  var num = f.elements.length;
  var cuenta = 0; 
	 
  for (var i=0; i <= num-1; i++) {
	elemento=f.elements[i];
	if(elemento.type=='text'){
		if( (elemento.value != '') && (elemento.name == obj) ){ cuenta++; }
	}
  }
  return(cuenta);
}
function get_valor_radio(formid, name)
{
  var f = document.getElementById(formid);
  var num = f.elements.length;
	 
  for (var i=0; i <= num-1; i++){
	elemento=f.elements[i];
	if(elemento.type=='radio' && elemento.name==name && elemento.checked) return elemento.value;
  }
  return false;
}
function formatea_url(url)
{
  if( url=='' ) return '';
  if( ( url!='' ) && ( url.substring(0,4)!='http' ) ){	
	url = 'http://' + url;
  }
  //var lon = url.length-1;
  //if( url.charAt(lon)=='/' ) url = url.substring(0,lon);  
  return url;
}
function cambia_bloque(id,valor)
{
  var obj = document.getElementById(id);
  if( valor )
  {
	obj.className = 'bloque_oculto';
  }else{
	obj.className = 'bloque_visible';
  }
  return;
}
function ck_bloque(id,etiqueta)
{
  var clase = document.getElementById(id).className;
  document.getElementById(id).className = (clase=='bloque_oculto') ? 'bloque_visible' : 'bloque_oculto';
  if(document.getElementById(etiqueta)) document.getElementById(etiqueta).innerHTML = (clase=='bloque_oculto') ? '-' : '+';
  return;
}
function ver_info(id,info)
{
  var capa = 'capa_info_'+id;
  if( info != '' ){
	info = "<div class='cuadro' >"+info+"</div>";
  }
  document.getElementById(capa).innerHTML = info;
}
function icono(icono)
{
  if(!icono) return '';
  return '<img src="/images/comun/'+icono+'.gif" border="0" align="absmiddle" />';	
}
function include(jsFile)
{
  document.write('<script type="text/javascript" src="'+jsFile+'"></scr'+'ipt>');
  return; 
}





//Dreamweaver
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_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_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];}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}