var submenutop = 153;

function changeimg(img,type){
	if (type){
		document.getElementById(img).src='images/' + img + '_hover.gif';
	}else {
		document.getElementById(img).src='images/' + img + '.gif';				
	}
}

//function changemirror(img){
//	document.all.mirror.src=img;			
//}

function showmenu(menu,type,pos){
	if (type){
		document.getElementById(menu).style.marginLeft =pos + "px";
		document.getElementById(menu).style.display='block';
	}else {
		document.getElementById(menu).style.display='none';
	}
}

function showsubmenu(menu,type,pos,top){			
	if (type){
		showmenu('gm',1,100);
		document.getElementById('sub'+menu).style.top = submenutop + top;
		document.getElementById('sub'+menu).style.marginLeft = pos + "px";
		document.getElementById('sub'+menu).style.display='block';
	}else {
		showmenu('gm',0,100);
		document.getElementById('sub'+menu).style.display='none';
	}
}