function loadimg() {
 var img01 = new Image();
 var img02 = new Image();
 var img03 = new Image();
 var img04 = new Image();
 var img05 = new Image();
 var img06 = new Image();
 var img07 = new Image();
 var img08 = new Image();
 var img09 = new Image();
 var img10 = new Image();
 img01.src = "common/gb_home_o.gif";
 img02.src = "common/gb_product_o.gif";
 img03.src = "common/gb_corp_o.gif";
 img04.src = "common/gb_ir_o.gif"; 
 img05.src = "common/gb_recruit_o.gif"; 
 img06.src = "common/gb_csr_o.gif";
 img07.src = "common/mb_product_o.gif";
 img08.src = "common/mb_corp_o.gif";
 img09.src = "common/mb_ir_o.gif"; 
 img10.src = "common/mb_csr_o.gif"; 
 }