/* muginavi追加機能 [最上位オブジェクト対処] ver3.20.021211.2251 */
muginavi.objvis=function(a){
if(nn){
var lay=document.layers
for(var i=0;i<lay.length;i++)
if(lay[i].document.forms.length+lay[i].document.embeds.length)
lay[i].visibility=a?"show":"hidden"
}else
if(op||o6||ie){
var tags=ie?["iframe","select","object","embed"]:o6?["iframe","input","select","textarea"]:op?["iframe"]:[]
for(var n=0;n<tags.length;n++){
	var e=ie?document.all.tags(tags[n]):document.getElementsByTagName(tags[n])
	for(var i=0;i<e.length;i++)
		e[i].style.visibility=a?"visible":"hidden"
}
}else
	if(ie||gk){
		var css=document.styleSheets
		css[css.length-1].disabled=a
	}
}
if(nn)
document.write("<style>.mnhide{position:relative;}</style>")
muginavi.showhere_form=muginavi.showhere
muginavi.showhere=function(){
if(ie&&!ie4||gk)
document.write("<style disabled>object,iframe,embed"+(ie?",select":"")+"{visibility:hidden}</style>")
this.showhere_form()
}
muginavi.beforevis_form=muginavi.beforevis
muginavi.beforevis=function(o,s){
this.objvis(false)
this.beforevis_form(o,s)
}
muginavi.hideall_form=muginavi.hideall
muginavi.hideall=function(){
this.objvis(true)
this.hideall_form()
}