function big_table()
{
	if( !_opened)
	{
		var obj = document.getElementById("big_table");
		if(obj)
		{
			var a = obj.getElementsByTagName("div");
			for(var i=0;i<a.length;i++)
			{
				if(a[i].className == "div_popup")
				{
					a[i].style.display = "none";
				}
			}
			_opened = true;
		}
	}
	else{
	_opened = false; }
}
_opened = false;

function show_vid(id)
 {
     var big1 = document.getElementById(id);
     big1.style.display = big1.style.display == 'block' ? 'none': 'block';
     //big1.style.display = 'block';
}