function o_down(theobject){
object=theobject
	while(object.filters.alpha.opacity>70){
		object.filters.alpha.opacity+=-70}
		}
function o_up(theobject){
object=theobject
	while(object.filters.alpha.opacity<100){
		object.filters.alpha.opacity+=70}
		}
function wback(){
	if(menu1.history.length==0){window.history.back()}
	else{menu1.history.back()}
	}