if(document.images) {
 var imgs = new Array();
 imgs[00] = new Image();  imgs[00].src = "img/mm_top1.png";
 imgs[01] = new Image();  imgs[01].src = "img/mm_top2.png";
 imgs[02] = new Image();  imgs[02].src = "img/mm_about1.png";
 imgs[03] = new Image();  imgs[03].src = "img/mm_about2.png";
 imgs[04] = new Image();  imgs[04].src = "img/mm_disc1.png";
 imgs[05] = new Image();  imgs[05].src = "img/mm_disc2.png";
 imgs[06] = new Image();  imgs[06].src = "img/mm_image1.png";
 imgs[07] = new Image();  imgs[07].src = "img/mm_image2.png";
 imgs[08] = new Image();  imgs[08].src = "img/mm_sound1.png";
 imgs[09] = new Image();  imgs[09].src = "img/mm_sound2.png";
 imgs[10] = new Image();  imgs[10].src = "img/mm_archive1.png";
 imgs[11] = new Image();  imgs[11].src = "img/mm_archive2.png";
 imgs[12] = new Image();  imgs[12].src = "img/mm_blog1.png";
 imgs[13] = new Image();  imgs[13].src = "img/mm_blog2.png";
 imgs[14] = new Image();  imgs[14].src = "img/mm_link1.png";
 imgs[15] = new Image();  imgs[15].src = "img/mm_link2.png";
 imgs[16] = new Image();  imgs[16].src = "img/mm_work1.png";
 imgs[17] = new Image();  imgs[17].src = "img/mm_work2.png";
}
function chgimg(id, imgname) {
	if(document.images) {
		if(imgs[imgname]) {
			document.images[id].src = imgs[imgname].src;
		}
	else {
			document.images[id].src = imgname;
		}
	}
}