function openBLxy(x,y){
	document.getElementById('bl_img').src=x;
	document.getElementById('box_light_name').innerHTML=y;
	document.getElementById('box-darkened').style.display='block';
	document.getElementById('box-light').style.display='block';
	document.getElementsByTagName('html')[0].style.overflow='hidden';
	window.scrollTo(0,0);
}

function openBL(){
	document.getElementById('box-darkened').style.display='block';
	document.getElementById('box-light').style.display='block';
	document.getElementsByTagName('html')[0].style.overflow='hidden';
	window.scrollTo(0,0);
}

function closeBL(){
	document.getElementById('box-darkened').style.display='none';
	document.getElementById('box-light').style.display='none';
	document.getElementsByTagName('html')[0].style.overflow='auto';
}

function nextBL(){
	document.getElementById('next-image').style.display='';
}

function nextBL_off(){
	document.getElementById('next-image').style.display='none';
}

function prevBL(){
	document.getElementById('prev-image').style.display='';
}

function prevBL_off(){
	document.getElementById('prev-image').style.display='none';
}