function PreloadImages() {
	var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
		var i,j=d.MM_p.length,a=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 SwapImage() {
	var i,j=0,x,a=SwapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
	if ((x=FindObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function SwapImgRestore() {
	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 FindObj(n, d) {
	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=FindObj(n,d.layers[i].document);
	if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function pageBack(){
	history.back();
}

function show(num) {
   if(document.getElementById) {
      document.getElementById("cate" + num).style.display = "block";
      document.getElementById("read" + num).style.display = "none";
      document.getElementById("close" + num).style.display = "inline";
   }
   return false;
}
function hide(num) {
   if(document.getElementById) {
      document.getElementById("cate" + num).style.display = "none";
      document.getElementById("read" + num).style.display = "inline";
      document.getElementById("close" + num).style.display = "none";
   }
   return false;
}

function jump(){ 
parent.menu.location.href = "menu.cgi"; 
}