var theData = new Array('hlj-gunpla.gif','zoid-hlj.jpg','macross-hlj.jpg') 
var theLink = new Array('http://www.hlj.com/top/Gun','http://www.hlj.com/scripts/hljlist.cgi?SeriTxt1=zoids&Maker1=All&Scale=All&Dae=All&Dis=2','http://www.hlj.com/scripts/hljlist.cgi?SeriTxt1=macross&Maker1=All&Scale=All&Dae=All&Dis=2') 
var p = theData.length;
var seq
var checkNum

function RandImage(){
var ImageNo = Math.round(Math.random()*(p-1));
document.write('<a href="' + theLink[ImageNo] + '" ><img src="http://www.mech9.com/' + theData[ImageNo] + '"></a>');
}

function IsNumeric(input){
   return (input - 0) == input && input.length > 0;
}

/** function setCookie(c_name,value,expiredays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate()+expiredays);
document.cookie=c_name+ "=" +escape(value)+((expiredays==null) ? "" : ";expires="+exdate.toUTCString());
}
**/

function setCookie( name, value, expires, path, domain, secure )
{
// set time, it's in milliseconds
var today = new Date();
today.setTime( today.getTime() );

/*
if the expires variable is set, make the correct
expires time, the current script below will set
it for x number of days, to make it for hours,
delete * 24, for minutes, delete * 60 * 24
*/
if ( expires )
{
expires = expires * 1000 * 60 * 60 * 24;
}
var expires_date = new Date( today.getTime() + (expires) );

document.cookie = name + "=" +escape( value ) +
( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) +
( ( path ) ? ";path=" + path : "" ) +
( ( domain ) ? ";domain=" + domain : "" ) +
( ( secure ) ? ";secure" : "" );
}


function getCookie(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=");
  if (c_start!=-1)
    {
    c_start=c_start + c_name.length+1;
    c_end=document.cookie.indexOf(";",c_start);
    if (c_end==-1) c_end=document.cookie.length;
    return unescape(document.cookie.substring(c_start,c_end));
    }
  }
return "";
}

function nextImage(){
	seq=getCookie('seq');
	checkNum=IsNumeric(seq);
        setCookie('checkNum',checkNum,365,'/');
	if (seq!=null && checkNum!=false){
                seq=parseInt(seq);
		if(seq < 0){
		  seq=0;
		}else if(seq<p-1){
		  seq=seq+1;
                }else{
		  seq=0;
		}
	}else{
	    seq=0;
	}
	    setCookie('seq',seq,365,'/');
document.write('<a href="' + theLink[seq] + '" ><img src="http://www.mech9.com/' + theData[seq] + '"></a>');
}