function changeTabs(selectedTab) {
	
	recentDiv = document.getElementById('recent-posts');
	viewedDiv = document.getElementById('viewed-posts');
	commentedDiv = document.getElementById('commented-posts');
	
	if(selectedTab == "recent"){
		recentDiv.style.display = "block";
		viewedDiv.style.display = "none";
		commentedDiv.style.display = "none";
	}
	
	if(selectedTab == "viewed"){
		recentDiv.style.display = "none";
		viewedDiv.style.display = "block";
		commentedDiv.style.display = "none";
	}
	
	if(selectedTab == "commented"){
		recentDiv.style.display = "none";
		viewedDiv.style.display = "none";
		commentedDiv.style.display = "block";
	}
}