_w = null;

function open_window(path,width,height,win){
	
	w = window.screen.availWidth;
	h = window.screen.availHeight;	
	
	posL = (w-width)*.5;
	posT = (h-height)*.5;
	
	if(_w && _w.open){
		_w.close();
	}	
	
	_w = window.open(path,win,'width='+width+',height='+height+',top='+posT+',left='+posL+',menubar=0,location=0,toolbar=0,personalbar=0,status=0,scrollbars=1,allowresize=1,dependent=1');
	
}

function open_window_full(path,win){
	
	w = window.screen.availWidth;
	h = window.screen.availHeight;	
	
	posL = 0;
	posT = 0;
	
	if(_w && _w.open){
		_w.close();
	}	
	
	_w = window.open(path,win,'width='+w+',height='+h+',top='+posT+',left='+posL+',menubar=0,location=0,toolbar=0,personalbar=0,status=0,scrollbars=1,allowresize=1,dependent=1');
	
}

function show_video(which){	
	open_window_full(which.href,'video');
}