function changeImage1(){
    document.myimg1.src="img/btn_home2.gif";
}
function changeImage2(){
    document.myimg1.src="img/btn_home.gif";
}
function changeImage3(){
    document.myimg2.src="img/btn_intro2.gif";
}
function changeImage4(){
    document.myimg2.src="img/btn_intro.gif";
}
function changeImage5(){
    document.myimg3.src="img/btn_imp2.gif";
}
function changeImage6(){
    document.myimg3.src="img/btn_imp.gif";
}
function changeImage7(){
    document.myimg4.src="img/btn_shinbi2.gif";
}
function changeImage8(){
    document.myimg4.src="img/btn_shinbi.gif";
}
function changeImage9(){
    document.myimg5.src="img/btn_white2.gif";
}
function changeImage10(){
    document.myimg5.src="img/btn_white.gif";
}
function changeImage11(){
    document.myimg6.src="img/btn_mail2.gif";
}
function changeImage12(){
    document.myimg6.src="img/btn_mail.gif";
}



	function OpenWin1(){
	    win=window.open("img/shiryo1.gif","","width=507,height=686");
	}
	function OpenWin2(){
	    win=window.open("img/shiryo2.gif","","width=535,height=415");
	}
	function OpenWin3(){
	    win=window.open("img/shiryo3.gif","","width=607,height=766");
	}
	function OpenWin4(){
	    win=window.open("img/ems1.gif","","width=720,height=430");
	}