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 check()
  {
      if (document.contact_form.yhnuio.value.length<3)
      {
        alert("Enter Name.");
        document.contact_form.yhnuio.focus();
        return false;
      }

      if (document.contact_form.rthpoi.value.length<3)
      {
        alert("Enter E-mail Address.");
        document.contact_form.rthpoi.focus();
        return false;
      }

      if (document.contact_form.dsskjhkj.value.length<3)
      {
        alert("Enter Message.");
        document.contact_form.dsskjhkj.focus();
        return false;
      }

    return true;
  }
  

   /* function music()
    {
     musi="/music/test.mid"
     document.write("<span id='mus' style=''><embed hidden src="+musi+" width=0 height=0 loop=-1></span>")
    }

    function mus2()
    {
    if (document.getElementById('switchbtn').value == "off") {document.getElementById('mus').innerHTML=""; document.getElementById('switchbtn').value = "on"; document.getElementById('switchbtn').src="/imgs/menu/soundon.png";}
    else if (document.getElementById('switchbtn').value == "on") {document.getElementById('mus').innerHTML="<embed hidden src="+musi+" loop=-1>"; document.getElementById('switchbtn').value = "off"; document.getElementById('switchbtn').src="/imgs/menu/soundoff.png";}
    }

    function mus1()
    {
    if (document.getElementById('switchbtn').value == "off") {document.getElementById('mus').innerHTML=""; document.getElementById('switchbtn').value = "on"; document.getElementById('switchbtn').src="/imgs/menu/soundon.jpg";}
    else if (document.getElementById('switchbtn').value == "on") {document.getElementById('mus').innerHTML="<embed hidden src="+musi+" loop=-1>"; document.getElementById('switchbtn').value = "off"; document.getElementById('switchbtn').src="/imgs/menu/soundoff.jpg";}
    }*/