function preload2() {
 new Image().src = "./images/top_dsps-img.jpg";
 new Image().src = "./images/top_rc-labo-img.jpg";
 new Image().src = "./images/top_develop-img.jpg";

 new Image().src = "./images/top-conts_dsps-button.jpg"; 
 new Image().src = "./images/top-conts_dsps-button_o.jpg";
 new Image().src = "./images/top-conts_rclabo-button.jpg";
 new Image().src = "./images/top-conts_rclabo-button_o.jpg";
 new Image().src = "./images/top-conts_develop-button.jpg";
 new Image().src = "./images/top-conts_develop-button_o.jpg";
 new Image().src = "./images/top-melmaga-button.gif";
 new Image().src = "./images/top-melmaga-button_o.gif";

 new Image().src = "./images/head-navi-news-button.jpg";
 new Image().src = "./images/head-navi-news-button_o.jpg";
 new Image().src = "./images/head-navi-dsps-button.jpg";
 new Image().src = "./images/head-navi-dsps-button_o.jpg";
 new Image().src = "./images/head-navi-rclabo-button.jpg";
 new Image().src = "./images/head-navi-rclabo-button_o.jpg";
 new Image().src = "./images/head-navi-dev-button.jpg";
 new Image().src = "./images/head-navi-dev-button_o.jpg";
 new Image().src = "./images/head-navi-company-button.jpg";
 new Image().src = "./images/head-navi-company-button_o.jpg";
 new Image().src = "./images/head-navi-contact.jpg";
 new Image().src = "./images/head-navi-contact_o.jpg";

 new Image().src = "./images/head-news2009-button.gif";
 new Image().src = "./images/head-news2009-button_o.gif";
 
 new Image().src = "./images/head-dsps-index-button.gif";
 new Image().src = "./images/head-dsps-index-button_o.gif";
 new Image().src = "./images/head-xprobe-button.gif";
 new Image().src = "./images/head-xprobe-button_o.gif";
 new Image().src = "./images/head-platform-button.gif";
 new Image().src = "./images/head-platform-button_o.gif";
 new Image().src = "./images/head-heron-system-button.gif"; 
 new Image().src = "./images/head-heron-system-button_o.gif";
 new Image().src = "./images/head-heron-module-button.gif"; 
 new Image().src = "./images/head-heron-module-button_o.gif";
 new Image().src = "./images/head-rtg-series-button.gif"; 
 new Image().src = "./images/head-rtg-series-button_o.gif";
 new Image().src = "./images/head-fpgaborad-button.gif"; 
 new Image().src = "./images/head-fpgaborad-button_o.gif";
 new Image().src = "./images/head-digitalborad-button.gif";
 new Image().src = "./images/head-digitalborad-button_o.gif";
 new Image().src = "./images/head-price-list-button.gif";
 new Image().src = "./images/head-price-list-button_o.gif";
 
 new Image().src = "./images/head-rclabo-index-button.gif"; 
 new Image().src = "./images/head-rclabo-index-button_o.gif";
 new Image().src = "./images/head-rc-skyphoto-button.gif"; 
 new Image().src = "./images/head-rc-skyphoto-button_o.gif";
 new Image().src = "./images/head-rc-skytest-button.gif"; 
 new Image().src = "./images/head-rc-skytest-button_o.gif";

 new Image().src = "./images/left-news2009-button.gif";
 new Image().src = "./images/left-news2009-button_o.gif";
 
 new Image().src = "./images/left-navi-dsps-index-button.gif";
 new Image().src = "./images/left-navi-dsps-index-button_o.gif";
 new Image().src = "./images/left-xprobe-button.gif";
 new Image().src = "./images/left-xprobe-button_o.gif";
 new Image().src = "./images/left-platform-button.gif";
 new Image().src = "./images/left-platform-button_o.gif";
 new Image().src = "./images/left-heron-system-button.gif";
 new Image().src = "./images/left-heron-system-button_o.gif";
 new Image().src = "./images/left-heron-module-button.gif";
 new Image().src = "./images/left-heron-module-button_o.gif";
 new Image().src = "./images/left-rtg-series-button.gif";
 new Image().src = "./images/left-rtg-series-button_o.gif";
 new Image().src = "./images/left-fpgaborad-button.gif";
 new Image().src = "./images/left-fpgaborad-button_o.gif";
 new Image().src = "./images/left-digitalborad-button.gif";
 new Image().src = "./images/left-digitalborad-button_o.gif";
 new Image().src = "./images/left-price-list-button.gif";
 new Image().src = "./images/left-price-list-button_o.gif";
 
 new Image().src = "./images/left-rc-labo-index-button.gif";
 new Image().src = "./images/left-rc-labo-index-button_o.gif";
 new Image().src = "./images/left-rc-skyphoto-button.gif";
 new Image().src = "./images/left-rc-skyphoto-button_o.gif";
 new Image().src = "./images/left-rc-skytest-button.gif";
 new Image().src = "./images/left-rc-skytest-button_o.gif";

 new Image().src = "./images/dsps-list-img01.jpg";
 new Image().src = "./images/dsps-list-img01_o.jpg";
 new Image().src = "./images/dsps-list-img02.jpg";
 new Image().src = "./images/dsps-list-img02_o.jpg";
 new Image().src = "./images/dsps-list-img03.jpg";
 new Image().src = "./images/dsps-list-img03_o.jpg";
 new Image().src = "./images/dsps-list-img04.jpg";
 new Image().src = "./images/dsps-list-img04_o.jpg";
 new Image().src = "./images/dsps-list-img05.jpg";
 new Image().src = "./images/dsps-list-img05_o.jpg";
 new Image().src = "./images/dsps-list-img06.jpg";
 new Image().src = "./images/dsps-list-img06_o.jpg";
 new Image().src = "./images/dsps-list-img07.jpg";
 new Image().src = "./images/dsps-list-img07_o.jpg";

 new Image().src = "./images/skyphoto-link.jpg";
 new Image().src = "./images/skyphoto-link_o.jpg";
 new Image().src = "./images/skytest-link.jpg";
 new Image().src = "./images/skytest-link_o.jpg";

}