//
// infomation.js
//
var selnum;
function rndimg() {
var output;
var num = arguments.length;
	if( num > 0 ){ 
		selnum = Math.floor((Math.random() * 100)) % num;
		document.write( '<img id="obj-img" src="../img/' + arguments[selnum] + '" alt="">' );

		document.write( '<div id="sum_pict">' );
		do {
			//output = '<span onclick="setimg(\'../img/' + arguments[num] + '\')">';
			output = ( num == selnum + 1 ) ? '■' : '□';
			//output += '</span>';
			document.write( output );
		} while( --num > 0 );
		document.write( '</div>' );
	}
}

function rndtext() {
	document.write( '<span>' + arguments[selnum + 1] + '</span>　' + arguments[0] );
}

var oldimg;
var oldtxt;
function imgover_on( imgsrc, txtsrc ) {
var srcbox = document.getElementById( "obj-img" );
	oldimg = srcbox.src;
	srcbox.src = imgsrc;

	srcbox = document.getElementById( "obj-txt" );
	oldtxt = srcbox.innerHTML;
	srcbox.innerHTML = txtsrc;
}
function imgover_off() {

	document.getElementById( "obj-img" ).src = oldimg;
	document.getElementById( "obj-txt" ).innerHTML = oldtxt;
}

//
// end JavaScript.