function link(num){

location.href='index.php?pag='+num;

}


function openWin(url){

testwindow= window.open (url, "Ventana",
    "location=1,status=1,scrollbars=1,width=850,height=650");
testwindow.moveTo(0,0);

}

function toggle(whichLayer)
{
if (document.getElementById)
{
// this is the way the standards work
var style2 = document.getElementById(whichLayer).style;
if(style2.display=="none"){style2.display="block"} else {style2.display="none"};
}
else if (document.all)
{
// this is the way old msie versions work
var style2 = document.all[whichLayer].style;
if(style2.display=="none"){style2.display="block"} else {style2.display="none"};
}
else if (document.layers)
{
// this is the way nn4 works
var style2 = document.layers[whichLayer].style;
if(style2.display=="none"){style2.display="block"} else {style2.display="none"};
}
}

/////

function pop(img, ancho, alto){
  derecha=(screen.width-ancho)/2;
  arriba=(screen.height-alto)/2;
  string="toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=1,width="+ancho+",height="+alto+",left="+derecha+",top="+arriba+"";
  fin=window.open(img,"",string);
}