var set_main_center = function(e){
	var h   = e.css('height').replace('px','') / 1;
	var wH  = $(window).height();
	var top = (wH - h) / 2;
	e.css("top",top + 'px');
}
var animate_main_box = function(e){
	var h   	= e.css('height').replace('px','') / 1;
	var wH  	= $(window).height();
	var top 	= wH / 2;
	var topTo	= h  / 2;
	
	e.css("top",top + 'px').css('height','0').css('display','block').animate({
		top: '-='+topTo,
		height: h
	},1500);
}
var show_sub_menu = function(e,menu){
	var ul = e.children('ul');
	e.addClass('active');
	ul.css('visibility','hidden').css('display','block');
	var h   = ul.height();
	var top = (h);
	ul.css('margin-top','-' + menu.height() + 'px').css('display','none').css('visibility','visible').css('height','0');
	
	ul.animate({
		marginTop: '-='+top+'px',
		height: h+'px'
	},1500,'easeOutExpo').css('display','block');
	
	// ul.show();
}
var set_top_bottom_bg = function(){
	if($("#top_bg").hasClass('done'))
		return false;
	/* -- Set Top and Bottom BG in their right position -- */
		var wH = $(document).height();
		var h  = wH / 2;
		
		$("#top_bg").height(h);
		$("#bottom_bg").height(h);
	/* --------------------------------------------------- */
}
var home_main_effect = function(){
	$("#main").css('visibility','visible').show();
	$("#top_bg").animate({
		height: '0px'
	},5000,function(){
		$(this).remove();
	});
	$("#bottom_bg").animate({
		height: '0px'
	},5000,function(){
		$(this).remove();
	});
}