function changeImage1on(){
    document.hdnavi1.src="img/template/hdnavi1_over.gif";
}
function changeImage1off(){
    document.hdnavi1.src="img/template/hdnavi1_off.gif";
}
function changeImage2on(){
    document.hdnavi2.src="img/template/hdnavi2_over.gif";
}
function changeImage2off(){
    document.hdnavi2.src="img/template/hdnavi2_off.gif";
}
function changeImage3on(){
    document.hdnavi3.src="img/template/hdnavi3_over.gif";
}
function changeImage3off(){
    document.hdnavi3.src="img/template/hdnavi3_off.gif";
}
function changeImage4on(){
    document.hdnavi4.src="img/template/hdnavi4_over.gif";
}
function changeImage4off(){
    document.hdnavi4.src="img/template/hdnavi4_off.gif";
}
function changeImage5on(){
    document.hdnavi5.src="img/template/hdnavi5_over.gif";
}
function changeImage5off(){
    document.hdnavi5.src="img/template/hdnavi5_off.gif";
}
function changeImage6on(){
    document.hdnavi6.src="img/template/hdnavi6_over.gif";
}
function changeImage6off(){
    document.hdnavi6.src="img/template/hdnavi6_off.gif";
}