function showGallery(){
	
	var pop_width  = screen.width-200;
	var pop_height = pop_width/2;
	
	var popup_left = (screen.width-pop_width)/2;
	var popup_top = (screen.height-pop_height)/2;

	window.open("/gallery/index.html",0,"toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width="+pop_width+",height="+pop_height+",left="+popup_left+",top="+popup_top);
}