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 loadImages ()
{
<!--
pic1= new Image(); 
pic1.src="/Images/Site/bg_main_01.jpg";
pic2= new Image(); 
pic2.src="/Images/Site/bg_main_02.gif";
pic3= new Image(); 
pic3.src="/Images/Site/enter_on.jpg";
pic4= new Image(); 
pic4.src="/Images/Site/enter_off.jpg";
//-->
}