var clicked=0;
function clear_menu(index)
{
	if(index==0){clicked=0;}
	if(index!=1){document.getElementById('main-menu-1').style.backgroundPosition='0px 0%';}
	if(index!=2){document.getElementById('main-menu-2').style.backgroundPosition='-82px 0%';
	document.getElementById('main-menu-content-2').style.display='none';}
	if(index!=3){document.getElementById('main-menu-3').style.backgroundPosition='-195px 0%';
	document.getElementById('main-menu-content-3').style.display='none';}
	if(index!=4){document.getElementById('main-menu-4').style.backgroundPosition='-286px 0%';
	document.getElementById('main-menu-content-4').style.display='none';}
	if(index!=5){document.getElementById('main-menu-5').style.backgroundPosition='-425px 0%';
	document.getElementById('main-menu-content-5').style.display='none';}
	if(index!=6){document.getElementById('main-menu-6').style.backgroundPosition='-516px 0%';
	document.getElementById('main-menu-content-6').style.display='none';}
	if(index!=7){document.getElementById('main-menu-7').style.backgroundPosition='-717px 0%';}
}
function show_menu(index)
{
	if(index==1){document.getElementById('main-menu-1').style.backgroundPosition='0px 100%';}
	if(index==2){document.getElementById('main-menu-2').style.backgroundPosition='-82px 100%';}
	if(index==3){document.getElementById('main-menu-3').style.backgroundPosition='-195px 100%';}
	if(index==4){document.getElementById('main-menu-4').style.backgroundPosition='-286px 100%';}
	if(index==5){document.getElementById('main-menu-5').style.backgroundPosition='-425px 100%';}
	if(index==6){document.getElementById('main-menu-6').style.backgroundPosition='-516px 100%';}
	if(index==7){document.getElementById('main-menu-7').style.backgroundPosition='-717px 100%';}
	if(clicked!=0){
	if(index==2){document.getElementById('main-menu-content-2').style.display='inherit';}
	if(index==3){document.getElementById('main-menu-content-3').style.display='inherit';}
	if(index==4){document.getElementById('main-menu-content-4').style.display='inherit';}
	if(index==5){document.getElementById('main-menu-content-5').style.display='inherit';}
	if(index==6){document.getElementById('main-menu-content-6').style.display='inherit';}};
}

function click_menu(index){
	if(clicked==index){clear_menu(0);
	}else{
	clicked=index;
	show_menu(index);
	if(index==2){document.getElementById('main-menu-content-2').style.display='inherit';}
	if(index==3){document.getElementById('main-menu-content-3').style.display='inherit';}
	if(index==4){document.getElementById('main-menu-content-4').style.display='inherit';}
	if(index==5){document.getElementById('main-menu-content-5').style.display='inherit';}
	if(index==6){document.getElementById('main-menu-content-6').style.display='inherit';}
	}
}

function over_menu(index)
{	

clear_menu(index);
show_menu(index);

}
function if_click_clear(){
	if(clicked==0){clear_menu();}
}