// Scrolling sidebar for your website
// Downloaded from Marcofolio.net
// Read the full article: http://www.marcofolio.net/webdesign/create_a_sticky_sidebar_or_box.html

window.onscroll = function()
{
	if( window.XMLHttpRequest ) {
		var left_ad_top = 580;
		var right_ad_top = 700;
		var browserName=navigator.appName; 

		/* Left side Ad */
		if (document.body.scrollTop > left_ad_top || self.pageYOffset > left_ad_top) {
			if (browserName=="Microsoft Internet Explorer") {
			  $('content').style.top = document.body.scrollTop - left_ad_top;
			} else {
			  document.getElementById('content').style.position = 'fixed';
			  document.getElementById('content').style.left = '50%';
			  document.getElementById('content').style.marginLeft = '-535px';			
			  document.getElementById('content').style.top = '0px';
			}
		} else if (document.documentElement.scrollTop < left_ad_top || self.pageYOffset < left_ad_top) {
			if (browserName=="Microsoft Internet Explorer") {
			  $('content').style.top = '5px';
			} else {
			  document.getElementById('content').style.position = 'static';
			  document.getElementById('content').style.left = '50%';
			  document.getElementById('content').style.marginLeft = '5px';
			}
		}
		/* Right side Ad */
		if (document.body.scrollTop > right_ad_top || self.pageYOffset > right_ad_top) {
			if (browserName=="Microsoft Internet Explorer") {
			  $('content2').style.top = document.body.scrollTop - right_ad_top - 50;
			} else {
			  document.getElementById('content2').style.position = 'fixed';
			  document.getElementById('content2').style.left = '50%';
			  document.getElementById('content2').style.marginLeft = '388px';
			  document.getElementById('content2').style.top = '0px';
			}
		} else if (document.documentElement.scrollTop < right_ad_top || self.pageYOffset < right_ad_top) {
			if (browserName=="Microsoft Internet Explorer") {
			  $('content2').style.top = '5px';
			} else {
			  document.getElementById('content2').style.position = 'static';
			  document.getElementById('content2').style.left = '50%';
			  document.getElementById('content2').style.marginLeft = '20px';
			}
		}
	}
}