function hideallmenus () {
	
	hideLayer('buy')	

	}

function showhidemenu(layertoshow) {
	
		
	if (layertoshow != 'hideall') {
		showLayer(layertoshow);
	}
}

 function changetitle(newtitlefile){
	parent.title.location.href=newtitlefile; 
 	
}