var btnOnImg = new Image(); btnOnImg.src = "http://sukoyakatei-blog.com/company/img/gotop_btn1.gif";
var btnOfImg = new Image(); btnOfImg.src = "http://sukoyakatei-blog.com/company/img/gotop_btn0.gif";
function btnDown(btn) {
	btn.src = btnOnImg.src;
}
function btnOf(btn) {
	btn.src = btnOfImg.src;
}

//menu onMouseOver

var imgLength = 8;

var leftmenuOutImg=new Array(imgLength);
var leftmenuOverImg=new Array(imgLength);

for(h=0;h<leftmenuOutImg.length;h++){
	leftmenuOutImg[h]=new Image();
	leftmenuOutImg[h].src="http://sukoyakatei-blog.com/company/img/leftmenu"+h+"1.jpg";
	leftmenuOverImg[h]=new Image();
	leftmenuOverImg[h].src="http://sukoyakatei-blog.com/company/img/leftmenu"+h+"2.jpg";
}

function leftmenuOver(posNum){
	document.images["leftmenu"+posNum].src=leftmenuOverImg[posNum].src;
}

function leftmenuOut(posNum){
	document.images["leftmenu"+posNum].src=leftmenuOutImg[posNum].src;
}