//detail
var btn_detail_over=new Image();
var btn_detail_up=new Image();
btn_detail_over.src="/img_common/btn_detail_over.gif";
btn_detail_up.src="/img_common/btn_detail_up.gif";

//footer nav1
var btn_footnav1_over=new Image();
var btn_footnav1_up=new Image();
btn_footnav1_over.src="/img_common/btn_footnav1_over.gif";
btn_footnav1_up.src="/img_common/btn_footnav1_up.gif";

//footer nav2
var btn_footnav2_over=new Image();
var btn_footnav2_up=new Image();
btn_footnav2_over.src="/img_common/btn_footnav2_over.gif";
btn_footnav2_up.src="/img_common/btn_footnav2_up.gif";

//footer nav3
var btn_footnav3_over=new Image();
var btn_footnav3_up=new Image();
btn_footnav3_over.src="/img_common/btn_footnav3_over.gif";
btn_footnav3_up.src="/img_common/btn_footnav3_up.gif";

//footer nav4
var btn_footnav4_over=new Image();
var btn_footnav4_up=new Image();
btn_footnav4_over.src="/img_common/btn_footnav4_over.gif";
btn_footnav4_up.src="/img_common/btn_footnav4_up.gif";

//footer pagetop
var btn_footpagetop_over=new Image();
var btn_footpagetop_up=new Image();
btn_footpagetop_over.src="/img_common/btn_footpagetop_over.gif";
btn_footpagetop_up.src="/img_common/btn_footpagetop_up.gif";



function rollon(targetimage) {
	if(targetimage=="detail") {
		document.images[targetimage].src=btn_detail_over.src;
	}
	if(targetimage=="footnav1") {
		document.images[targetimage].src=btn_footnav1_over.src;
	}
	if(targetimage=="footnav2") {
		document.images[targetimage].src=btn_footnav2_over.src;
	}
	if(targetimage=="footnav3") {
		document.images[targetimage].src=btn_footnav3_over.src;
	}
	if(targetimage=="footnav4") {
		document.images[targetimage].src=btn_footnav4_over.src;
	}
	if(targetimage=="footpagetop") {
		document.images[targetimage].src=btn_footpagetop_over.src;
	}
}

function rolloff(targetimage) {
	if(targetimage=="detail") {
		document.images[targetimage].src=btn_detail_up.src;
	}
	if(targetimage=="footnav1") {
		document.images[targetimage].src=btn_footnav1_up.src;
	}
	if(targetimage=="footnav2") {
		document.images[targetimage].src=btn_footnav2_up.src;
	}
	if(targetimage=="footnav3") {
		document.images[targetimage].src=btn_footnav3_up.src;
	}
	if(targetimage=="footnav4") {
		document.images[targetimage].src=btn_footnav4_up.src;
	}
	if(targetimage=="footpagetop") {
		document.images[targetimage].src=btn_footpagetop_up.src;
	}
}