function _switch(){
    if (document.getElementById("pass").style.display == 'none'){
      document.getElementById("pass").style.display = "";
    }
    else{
      document.getElementById("pass").style.display = "none";
    }
}

function _switch2(){
    if (document.getElementById("pass2").style.display == 'none'){
      document.getElementById("pass2").style.display = "";
    }
    else{
      document.getElementById("pass2").style.display = "none";
    }
}

function _switch3(){
    if (document.getElementById("pass3").style.display == 'none'){
      document.getElementById("pass3").style.display = "";
    }
    else{
      document.getElementById("pass3").style.display = "none";
    }
}

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];}}
}