if (document.images)
{
//declare and set preload image object
preload_image_object = new Array(50);
var i = 0;
for(i=0; i<=50; i++)
preload_image_object[i] = new Image();
//set image url
image_url = new Array(50);
image_url[0] = "./images/r1c1.jpg";
image_url[1] = "./images/r2c1.jpg";
image_url[2] = "./images/r2c2.jpg";
image_url[3] = "./images/r2c3.jpg";
image_url[4] = "./images/r3c1.jpg";
image_url[5] = "./images/r4c1.jpg";
image_url[6] = "./images/r4c2.jpg";
image_url[7] = "./images/r4c3.jpg";
image_url[8] = "./images/r5c1.jpg";
image_url[9] = "./images/r5c2.jpg";
image_url[10] = "./images/r5c3.jpg";
image_url[11] = "./images/r5c4.jpg";
image_url[12] = "./images/japrom.gif";
image_url[13] = "./images/kr1c1.jpg";
image_url[14] = "./images/kr1c2.jpg";
image_url[15] = "./images/kr2c2.jpg";
image_url[16] = "./images/kr2c3.jpg";
image_url[17] = "./images/kr1c3.jpg";
image_url[18] = "./images/kr3c2.jpg";
image_url[19] = "./images/kr3c3.jpg";
image_url[20] = "./images/kid1.jpg";
image_url[21] = "./images/kid2.jpg";
image_url[22] = "./images/kid3.jpg";
image_url[23] = "./images/cr1c1.jpg";
image_url[24] = "./images/cr1c2.jpg";
image_url[25] = "./images/cr2c2.jpg";
image_url[26] = "./images/cr2c3.jpg";
image_url[27] = "./images/cr1c3.jpg";
image_url[28] = "./images/cr3c2.jpg";
image_url[29] = "./images/cr3c3.jpg";
image_url[30] = "./images/cosme1.jpg";
image_url[31] = "./images/cosme2.jpg";
image_url[32] = "./images/cosme3.jpg";
image_url[33] = "./images/dr1c1.jpg";
image_url[34] = "./images/dr1c2.jpg";
image_url[35] = "./images/dr2c2.jpg";
image_url[36] = "./images/dr2c3.jpg";
image_url[37] = "./images/dr1c3.jpg";
image_url[38] = "./images/dr3c2.jpg";
image_url[39] = "./images/dr3c3.jpg";
image_url[40] = "./images/deco1.jpg";
image_url[41] = "./images/deco2.jpg";
image_url[42] = "./images/deco3.jpg";
image_url[43] = "./images/member.jpg";
image_url[44] = "./images/how_to_buy.gif";
image_url[45] = "./images/contact.gif";
image_url[46] = "./images/home.gif";
image_url[47] = "./images/cosme.gif";
image_url[48] = "./images/others.gif";
image_url[49] = "./images/clothes.gif";
image_url[50] = "./images/special_shop_button.gif";
var i = 0;
for(i=0; i<=50; i++)
  preload_image_object[i].src = image_url[i];
}