window.onload=function(){
	var navi01 = document.getElementById('navigation_work_design');
	IEPNGFIX.hover(navi01, '/i/navigation/navigation_work_design_d.png');
	var navi02 = document.getElementById('navigation_work_si');
	IEPNGFIX.hover(navi02, '/i/navigation/navigation_work_si_d.png');
	var navi03 = document.getElementById('navigation_work_manufacture');
	IEPNGFIX.hover(navi03, '/i/navigation/navigation_work_manufacture_a.png');
	var navi04 = document.getElementById('navigation_work_assembly');
	IEPNGFIX.hover(navi04, '/i/navigation/navigation_work_assembly_e.png');
}