// JavaScript Document

totalFotos = 7;
fotoActual = Math.floor(Math.random() * totalFotos)

function cambiaFoto(){
	fotoActual = fotoActual + 1;
	if (fotoActual > totalFotos) {
		fotoActual = 1;
		}
	document.images["foto"].src = "images/header_foto" + fotoActual + ".jpg";
	setTimeout("cambiaFoto()", 15000);
	}
	
function popGaboLite(url) {
	x = 760
	y = 380
	posX = (screen.width -x ) / 2;
	posY = (screen.height -y ) / 2;
	window.open(url,'asignatura','width='+x+',height='+y+',screenX='+posX+',screenY='+posY+',left='+posX+',top='+posY+',scrollbars');
	}

function popGabo(url, x, y) {
	posX = (screen.width -x ) / 2;
	posY = (screen.height -y ) / 2;
	window.open(url,'gabo','width='+x+',height='+y+',screenX='+posX+',screenY='+posY+',left='+posX+',top='+posY+',scrollbars');
	}

function popDownGabo(url) {
	window.opener.location.href = url
	window.close()
	}

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_ValidarForma() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_ValidarForma.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' debe ser un correo electrónico.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' debe contener un número.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' debe contener un número entre '+min+' y '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' es obligatorio.\n'; }
  } if (errors) alert('Ocurrieron los siguientes errores:\n'+errors);
  document.MM_returnValue = (errors == '');
}

function gaboFlash(clip, w, h) {
	document.write('<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0" width="'+w+'" height="'+h+'">');
    document.write('<param name="movie" value="images/'+clip+'.swf">');
    document.write('<param name="quality" value="high">');
    document.write('<param name="menu" value="false">');
		document.write('<embed src="images/'+clip+'.swf" menu=false quality=high width='+w+' height='+h+' type="application/x-shockwave-flash" "pluginspage="https://www.macromedia.com/go/getflashplayer">');
	document.write('</embed></object>\n');
}