// funciones javascript para menu

var NS4,NS6,IE4,IE5,vis,invis
var c_altura,c_cont,c_pos,c_desp,c_velo,funciona_scroll

  NS4 = (document.layers) ? true : false;
  IE4 = (document.all && !document.getElementById) ? true : false;
  IE5 = (document.all && document.getElementById) ? true : false;
  NS6 = (!document.all && document.getElementById) ? true : false;

if(NS4){vis="shown";invis="hide";}else{vis="visible";invis="hidden";}

document.onmousedown=click;
if (NS6){document.addEventListener("mouseup",alerta,false);}

function alerta(e){
if (e.which == 3) {alert("Antena Media Andalucía");return false;}
}

function click(e) {
  NS4 = (document.layers) ? true : false;
  if (NS4) {if (e.which == 3) {alert("Antena Media Andalucía");return false;}} else {if(NS6){}else{if (event.button == 2) {alert("Antena Media Andalucía");return false;}}}
}

function email(){
  alto=screen.height;ancho=screen.width;ancho2=520;alto2=340;
  izda=(ancho/2)-(ancho2/2);arriba=(alto/2)-(alto2/2);
  if(document.layers){
    miv6=window.open("email.php?", "TP", "toolbar=no,left="+izda+",top="+arriba+",titlebar=no,scrollbars=no,resize=no,copyhistory=0,width="+ancho2+",height="+alto2);
  }else{
    miv6=window.open("email.php?", "TP", "toolbar=no,left="+izda+",top="+arriba+",titlebar=no,scrollbars=0,Resizable=0,copyhistory=0,width="+ancho2+",height="+alto2);
  }
  miv6.focus()  
}

function boletin(){
  alto=screen.height;ancho=screen.width;ancho2=520;alto2=340;
  izda=(ancho/2)-(ancho2/2);arriba=(alto/2)-(alto2/2);
  if(document.layers){
    miv6=window.open("boletin.php?", "BO", "toolbar=no,left="+izda+",top="+arriba+",titlebar=no,scrollbars=no,resize=no,copyhistory=0,width="+ancho2+",height="+alto2);
  }else{
    miv6=window.open("boletin.php?", "BO", "toolbar=no,left="+izda+",top="+arriba+",titlebar=no,scrollbars=0,Resizable=0,copyhistory=0,width="+ancho2+",height="+alto2);
  }
  miv6.focus()  
}

function scroll(dir){   //  dir==0 --> flecha arriba, osea, bajar la capa
 if(funciona_scroll){
  if(IE4){capa=document.all.contenedor;}else{capa=document.getElementById("contenedor");}
  if((dir&&(c_pos<c_cont))||(!dir&&(c_pos>0))){
   if(c_velo==1 || (c_velo>1 && ((dir&&(c_pos<c_cont-(c_velo-1)))||(!dir&&(c_pos>(c_velo-1)))))){
     if(dir){prox=c_pos+c_velo;}else{prox=(c_pos-c_velo);}
     c_pos=prox;     
     capa.style.clip="rect("+String((c_pos*c_desp))+" 470 "+String(228+(c_pos*c_desp))+" 0)";
     capa.style.top=55-(c_pos*c_desp);
   }
  }   
  setTimeout("scroll("+dir+")",100);
 }
}

function inicia_scroll(){
  funciona_scroll=0;
  if(IE4){capa=document.all.contenedor;capa2=document.all.cargando;}else{capa=document.getElementById("contenedor");capa2=document.getElementById("cargando");}

  c_desp=20;
  c_velo=1;
  c_cont=0;
  c_altura=capa.offsetHeight;
  if(c_altura>228){
   if(IE4){document.all.elscroll.style.visibility="visible";}else{document.getElementById("elscroll").style.visibility="visible";}
   c_cont=Math.ceil((c_altura-228)/c_desp);
   c_pos=0;
   capa.style.pixelTop=55;
  }
  capa2.style.visibility="hidden";
  capa.style.visibility="visible";
}

function ini_scroll(d){
  if(d==-1){funciona_scroll=0;c_velo=1;}else{funciona_scroll=1;scroll(d);}
}

function velocidad(n){
  c_velo=n+1;
}

function documentacion(){
 if(c_cont!=0){
   c_pos=c_cont;
   capa.style.clip="rect("+String((c_pos*c_desp))+" 470 "+String(228+(c_pos*c_desp))+" 0)";
   capa.style.top=55-(c_pos*c_desp);
 }
}