//メインメニュープリロード
function preSwap(){
	Mimg01 = new Image();
	Mimg01.src =  "img/common/top_of_page_b2.gif";
	Mimg02 = new Image();
	Mimg02.src =  "img/top_menu/inkjet_b2.gif";
	Mimg03 = new Image();
	Mimg03.src =  "img/top_menu/graphic_b2.gif";
	Mimg04 = new Image();
	Mimg04.src =  "img/top_menu/p_materials_b2.gif";
	Mimg05 = new Image();
	Mimg05.src =  "img/top_menu/contact_b2.gif";
	Mimg06 = new Image();
	Mimg06.src =  "img/top_menu/link_b2.gif";
	Mimg07 = new Image();
	Mimg07.src =  "img/top_menu/terms_of_use_b2.gif";
	}
	
	
	
//ロールオーバー
function overSwap(Nid,IMG){
		Nid.src= IMG;
	}
function outSwap(Nid,IMG){
		Nid.src= IMG;

	}