//ブラウザバージョン判定DHTML
var IEversion = 0;
var NNversion = 0;
if(navigator.appName.indexOf("Microsoft") >= 0){
if(navigator.appVersion.charAt (0)==4 ){
if(navigator.appVersion.indexOf ("MSIE 5") != -1){
IEversion = 5;
}else{
IEversion = 4;
}
}
} else {
if(navigator.appName.indexOf("Netscape") >= 0){
if(navigator.appVersion.charAt(0) ==4){
NNversion = 4;
}else if(navigator.appVersion.charAt(0) ==5){
NNversion = 6;
}
}
}

//プリロード
if(navigator.appVersion.charAt(0) >= 3) {
	var img = new Array();
	//運用会社フロア
	img[1] = new Image();  img[1].src = "../rsrc/image/product/tbl_lt_bg_on.gif";
	img[2] = new Image();  img[2].src = "../rsrc/image/product/tbl_lt_bg_off.gif";
	img[3] = new Image();  img[3].src = "../rsrc/image/product/tbl_rt_bg_on.gif";
	img[4] = new Image();  img[4].src = "../rsrc/image/product/tbl_rt_bg_off.gif";
	img[5] = new Image();  img[5].src = "../rsrc/image/product/tbl_lm_bg_on.gif";
	img[6] = new Image();  img[6].src = "../rsrc/image/product/tbl_lm_bg_off.gif";
	img[7] = new Image();  img[7].src = "../rsrc/image/product/tbl_rm_bg_on.gif";
	img[8] = new Image();  img[8].src = "../rsrc/image/product/tbl_rm_bg_off.gif";

	img[9] = new Image();  img[9].src = "../rsrc/image/product/tbl_btm_bg_on.gif";
	img[10] = new Image();  img[10].src = "../rsrc/image/product/tbl_btm_bg_off.gif";
	img[11] = new Image();  img[11].src = "../rsrc/image/product/tbl_btm_bg_on.gif";
	img[12] = new Image();  img[12].src = "../rsrc/image/product/tbl_btm_bg_off.gif";
	img[13] = new Image();  img[13].src = "../rsrc/image/product/tbl_btm_bg_on.gif";
	img[14] = new Image();  img[14].src = "../rsrc/image/product/tbl_btm_bg_off.gif";
	img[15] = new Image();  img[15].src = "../rsrc/image/product/tbl_cntr_bg_on.gif";
	img[16] = new Image();  img[16].src = "../rsrc/image/product/tbl_cntr_bg_off.gif";


}

function chg_tblbg(id,num) {
if(navigator.appVersion.charAt(0) >= 3) {
document.getElementById(id).style.background = "url(" + img[num].src + ") no-repeat left top";
}
}