window.onload=function()
{
var url = document.URL;
switch( url){
	case 'http://www.syoene.com/' :
	Element.update('a01', "");
	Element.setStyle('a01',{
									 'width':'160px',
									 'height':'50px',
									 'display':'block',
									 'background':'url(http://www.syoene.com//img/g_navi1.jpg) 0 -50px no-repeat'});
	break;
	
	case 'http://www.syoene.com/fmail/contact.html' :
	Element.update('a02', "");
	Element.setStyle('a02',{
									 'width':'160px',
									 'height':'50px',
									 'display':'block',
									 'background':'url(http://www.syoene.com/img/g_navi2.jpg) 0 -50px no-repeat'});
	break;
	
	case 'http://www.syoene.com/faq/' :
	Element.update('a03', "");
	Element.setStyle('a03',{
									 'width':'160px',
									 'height':'50px',
									 'display':'block',
									 'background':'url(http://www.syoene.com/img/g_navi3.jpg) 0 -50px no-repeat'});
	break;
	
	case 'http://www.syoene.com/060/010_1/' :
	Element.update('a04', "");
	Element.setStyle('a04',{
									 'width':'160px',
									 'height':'50px',
									 'display':'block',
									 'background':'url(http://www.syoene.com/img/g_navi4.jpg) 0 -50px no-repeat'});
	break;
	
	case 'http://www.syoene.com/040/' :
	Element.update('a05', "");
	Element.setStyle('a05',{
									 'width':'157px',
									 'height':'50px',
									 'display':'block',
									 'background':'url(http://www.syoene.com/img/g_navi5.jpg) 0 -50px no-repeat'});
	break;
}
}