function fecha(){
var mydate=new Date()
var year=mydate.getYear()
if (year < 1000)
year+=1900
var day=mydate.getDay()
var month=mydate.getMonth()
var daym=mydate.getDate()
if (daym<10)
daym="0"+daym
var dayarray=new Array("Domingo","Lunes","Martes","Miercoles","Jueves","Viernes","Sabado")
var montharray=new Array("Enero","Febrero","Marzo","Abril","Mayo","Junio","Julio","Agosto","Septiembre","Octubre","Noviembre","Diciembre")
document.write("<small><font color='000000' face='Arial'>"+dayarray[day]+" "+daym+" de "+montharray[month]+" de "+year+"</font></small>")
}



function CargarFoto(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);
}



function newWin(link,w,h,s,r) {
  var winFeatures = 'width=' + w + ',height=' + h + ',scrollbars=' + s + ',resizable=' + r;
  var bookWindow = window.open(link, "", winFeatures);
}

function LogTen(x) {
  return Math.log(x)/Math.LN10
}

function ExpTen(x) {
  return Math.pow(10,x)
}

function FourDecimals(x) {
  return Math.round(x*10000)/10000
}

function CalcSimpleSum() {
  var n1 = parseFloat(document.simplesum.num1.value)
  var n2 = parseFloat(document.simplesum.num2.value)
  var n3 = n1 * n2
  var l1 = LogTen(n1)
  var l2 = LogTen(n2)
  var l3 = LogTen(n3)
  document.simplesum.num3.value = n3
  document.simplesum.log1.value = FourDecimals(l1)
  document.simplesum.log2.value = FourDecimals(l2)
  document.simplesum.log3.value = FourDecimals(l3)
}



function FP_preloadImgs() {//v1.0
 var d=document,a=arguments; if(!d.FP_imgs) d.FP_imgs=new Array();
 for(var i=0; i<a.length; i++) { d.FP_imgs[i]=new Image; d.FP_imgs[i].src=a[i]; }
}