$(document).ready(function(){
	if(!isMobile()){
		
		var burst_y = parseFloat(0);
		var c1_y = parseFloat(0);
		var lt_y = parseFloat(0)
		var scrollTop = $(window).scrollTop();
		$(window).scroll(function(){
			if (getScrollTop()>=0){
				lt_y = 109 - Math.floor(getScrollTop());
				burst_y = Math.floor(.5*getScrollTop());
				c1_y = 20+Math.floor(.4*getScrollTop());
				c2_y = 160+Math.floor(.3*getScrollTop());
				$('header h1 a').css({'top':''+lt_y+'px'})
				$('header').css({'top':''+burst_y+'px'})
				$('aside:first').css({'top':''+c1_y+'px'})
				$('aside.second').css({'top':''+c2_y+'px'})
			}
		});

	}
	
});
function getScrollTop(){ //  Verifies the total sum in pixels of the whole page
	if(typeof pageYOffset!= 'undefined'){
        // Most browsers
        return pageYOffset;
    }
    else{
        var B= document.body; //IE 'quirks'
        var D= document.documentElement; //IE with doctype
        D= (D.clientHeight)? D: B;
        return D.scrollTop;
    }
}
var isMobile = function(){
    var ua = navigator.userAgent;
    var checker = {
      mobile: ua.match(/(iPhone|iPod|iPad|BlackBerry|Android)/)
    };
    if (checker.mobile){
        return true;
    }else{
		return false;
	}
}