var boxlist = new Array();
for (i=0;i<10;i++){
	boxlist[i]="box"+i;
}
//
function boxChange(num){
	//
	var box0=document.getElementById("box0");
	var box1=document.getElementById("box1");
	var box2=document.getElementById("box2");
	var box3=document.getElementById("box3");
	var box4=document.getElementById("box4");
	var box5=document.getElementById("box5");
	var box6=document.getElementById("box6");
	var box7=document.getElementById("box7");
	var box8=document.getElementById("box8");
	var box9=document.getElementById("box9");
	//	
	box0.style.display='none';
	box1.style.display='none';
	box2.style.display='none';
	box3.style.display='none';
	box4.style.display='none';
	box5.style.display='none';
	box6.style.display='none';
	box7.style.display='none';
	box8.style.display='none';
	box9.style.display='none';
	//
	var boxthis=boxlist[num];
	boxthis=document.getElementById(boxthis);
	boxthis.style.display='block';
	//	
	document.location.href="#hack"
}