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_findObj(n, d) { //v4.0
  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 && document.getElementById) x=document.getElementById(n); return x;
}

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_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 zMyIndex(who,how){
	var x = MM_findObj(who);	
	x.style.zIndex  = how;
}

function showdiv(div)
{
	var which;

	if (document.layers)
	{
	 	for(i = 0; i < 9; i++){
			which = 'tdiv' + i;
			if(document.layers[which]){
				document.layers[which].visibility = 'hide';
			}
		}	
		document.layers[div].visibility = 'show';
	}
	else if (document.all)
	{
                for(i = 0; i < 9; i++){
			which = 'tdiv' + i;
                        if(document.all[which]){
                                document.all[which].style.visibility = 'hidden';
                        }
                }

		document.all[div].style.visibility = 'visible';
	}
	else if (document.getElementById)
	{
                for(i = 0; i < 9; i++){
			which = 'tdiv' + i;
                        if(document.getElementById(which)){
                                document.getElementById(which).style.visibility = 'hidden';
                        }
                }

		document.getElementById(div).style.visibility = 'visible';

	}
}

function trim(str)
{
  return str.replace(/^\s+|\s+$/g, '')
};

function checkform_en(){
	var ok = true;
	//validate name
	  var firstname = trim(document.forms.mailform.first.value);
	  if(firstname == ""){
	  	alert("Please enter your first name");
	  	if(ok) document.forms.mailform.first.focus();
	  	ok = false;
	  }
	  
	//validate surname
	  var surname = trim(document.forms.mailform.last.value);
	  if(surname == ""){
	  	if(ok) alert("Please enter your surname");
	  	if(ok) document.forms.mailform.last.focus();
	  	ok = false;
	  }
	  
	//validate email
	  var tfld = trim(document.forms.mailform.email.value);  // value of field with whitespace trimmed off
  	  var email = /^[^@]+@[^@.]+\.[^@]*\w\w$/
      if (!email.test(tfld)) {
      	if(ok) alert("Please enter e-mail address in correct format");
      	if(ok) document.forms.mailform.email.focus();
      	ok = false;
  	  }
  	  
  if(ok){
  	document.forms.mailform.submit();
  }
};

function checkform_de(){
        var ok = true;
        //validate name
          var firstname = trim(document.forms.mailform.first.value);
          if(firstname == ""){
                alert("Bitte geben Sie Ihren Vornamen ein.");
                if(ok) document.forms.mailform.first.focus();
                ok = false;
          }

        //validate surname
          var surname = trim(document.forms.mailform.last.value);
          if(surname == ""){
                if(ok) alert("Bitte geben Sie Ihren Nachnamen ein.");
                if(ok) document.forms.mailform.last.focus();
                ok = false;
          }

        //validate email
          var tfld = trim(document.forms.mailform.email.value);  // value of field with whitespace trimmed off
          var email = /^[^@]+@[^@.]+\.[^@]*\w\w$/
      if (!email.test(tfld)) {
        if(ok) alert("Bitte geben Sie Ihre Email-Adresse ein.");
        if(ok) document.forms.mailform.email.focus();
        ok = false;
          }

  if(ok){
        document.forms.mailform.submit();
  }
};

function checkform_es(){
        var ok = true;
        //validate name
          var firstname = trim(document.forms.mailform.first.value);
          if(firstname == ""){
                alert("Por favor, introduzca su nombre.");
                if(ok) document.forms.mailform.first.focus();
                ok = false;
          }

        //validate surname
          var surname = trim(document.forms.mailform.last.value);
          if(surname == ""){
                if(ok) alert("Por favor, introduzca su apellido.");
                if(ok) document.forms.mailform.last.focus();
                ok = false;
          }

        //validate email
          var tfld = trim(document.forms.mailform.email.value);  // value of field with whitespace trimmed off
          var email = /^[^@]+@[^@.]+\.[^@]*\w\w$/
      if (!email.test(tfld)) {
        if(ok) alert("Por favor, introduzca su e-mail.");
        if(ok) document.forms.mailform.email.focus();
        ok = false;
          }

  if(ok){
        document.forms.mailform.submit();
  }
};