function toggleBlock(evt) {

	evt = (evt) ? evt : event;
	var target = (evt.target) ? evt.target : evt.srcElement;
	var top=window.document.showchannels;

	if (target.id == "allchannels") { 
		document.getElementById("lifestyle_block").style.display = "block";
		document.getElementById("news_block").style.display = "block";
		document.getElementById("family_block").style.display = "block";
		document.getElementById("movies_block").style.display = "block";
		document.getElementById("sports_block").style.display = "block";
		document.getElementById("education_block").style.display = "block";
		document.getElementById("music_block").style.display = "block";
		document.getElementById("public_block").style.display = "block";
		document.getElementById("religious_block").style.display = "block";
		document.getElementById("shopping_block").style.display = "block";
		document.getElementById("audio_block").style.display = "block";
		} 

	if (target.id == "lifestyle") { 
		document.getElementById("lifestyle_block").style.display = "block";
		document.getElementById("news_block").style.display = "none";
		document.getElementById("family_block").style.display = "none";
		document.getElementById("movies_block").style.display = "none";
		document.getElementById("sports_block").style.display = "none";
		document.getElementById("education_block").style.display = "none";
		document.getElementById("music_block").style.display = "none";
		document.getElementById("public_block").style.display = "none";
		document.getElementById("religious_block").style.display = "none";
		document.getElementById("shopping_block").style.display = "none";
		document.getElementById("audio_block").style.display = "none";
		} 
		
	if (target.id == "news") { 
		document.getElementById("lifestyle_block").style.display = "none";
		document.getElementById("news_block").style.display = "block";
		document.getElementById("family_block").style.display = "none";
		document.getElementById("movies_block").style.display = "none";
		document.getElementById("sports_block").style.display = "none";
		document.getElementById("education_block").style.display = "none";
		document.getElementById("music_block").style.display = "none";
		document.getElementById("public_block").style.display = "none";
		document.getElementById("religious_block").style.display = "none";
		document.getElementById("shopping_block").style.display = "none";
		document.getElementById("audio_block").style.display = "none";
		} 

	if (target.id == "family") { 
		document.getElementById("lifestyle_block").style.display = "none";
		document.getElementById("news_block").style.display = "none";
		document.getElementById("family_block").style.display = "block";
		document.getElementById("movies_block").style.display = "none";
		document.getElementById("sports_block").style.display = "none";
		document.getElementById("education_block").style.display = "none";
		document.getElementById("music_block").style.display = "none";
		document.getElementById("public_block").style.display = "none";
		document.getElementById("religious_block").style.display = "none";
		document.getElementById("shopping_block").style.display = "none";
		document.getElementById("audio_block").style.display = "none";
		} 

	if (target.id == "movies") {
		document.getElementById("lifestyle_block").style.display = "none";
		document.getElementById("news_block").style.display = "none";
		document.getElementById("family_block").style.display = "none";
		document.getElementById("movies_block").style.display = "block";
		document.getElementById("sports_block").style.display = "none";
		document.getElementById("education_block").style.display = "none";
		document.getElementById("music_block").style.display = "none";
		document.getElementById("public_block").style.display = "none";
		document.getElementById("religious_block").style.display = "none";
		document.getElementById("shopping_block").style.display = "none";
		document.getElementById("audio_block").style.display = "none";
		} 
		
	if (target.id == "sports") { 
		document.getElementById("lifestyle_block").style.display = "none";
		document.getElementById("news_block").style.display = "none";
		document.getElementById("family_block").style.display = "none";
		document.getElementById("movies_block").style.display = "none";
		document.getElementById("sports_block").style.display = "block";
		document.getElementById("education_block").style.display = "none";
		document.getElementById("music_block").style.display = "none";
		document.getElementById("public_block").style.display = "none";
		document.getElementById("religious_block").style.display = "none";
		document.getElementById("shopping_block").style.display = "none";
		document.getElementById("audio_block").style.display = "none";
		} 
		
	if (target.id == "education") { 
		document.getElementById("lifestyle_block").style.display = "none";
		document.getElementById("news_block").style.display = "none";
		document.getElementById("family_block").style.display = "none";
		document.getElementById("movies_block").style.display = "none";
		document.getElementById("sports_block").style.display = "none";
		document.getElementById("education_block").style.display = "block";
		document.getElementById("music_block").style.display = "none";
		document.getElementById("public_block").style.display = "none";
		document.getElementById("religious_block").style.display = "none";
		document.getElementById("shopping_block").style.display = "none";
		document.getElementById("audio_block").style.display = "none";
		} 

	if (target.id == "music") { 
		document.getElementById("lifestyle_block").style.display = "none";
		document.getElementById("news_block").style.display = "none";
		document.getElementById("family_block").style.display = "none";
		document.getElementById("movies_block").style.display = "none";
		document.getElementById("sports_block").style.display = "none";
		document.getElementById("education_block").style.display = "none";
		document.getElementById("music_block").style.display = "block";
		document.getElementById("public_block").style.display = "none";
		document.getElementById("religious_block").style.display = "none";
		document.getElementById("shopping_block").style.display = "none";
		document.getElementById("audio_block").style.display = "none";
		} 
	
	if (target.id == "public") {
		document.getElementById("lifestyle_block").style.display = "none";
		document.getElementById("news_block").style.display = "none";
		document.getElementById("family_block").style.display = "none";
		document.getElementById("movies_block").style.display = "none";
		document.getElementById("sports_block").style.display = "none";
		document.getElementById("education_block").style.display = "none";
		document.getElementById("music_block").style.display = "none";
		document.getElementById("public_block").style.display = "block";
		document.getElementById("religious_block").style.display = "none";
		document.getElementById("shopping_block").style.display = "none";
		document.getElementById("audio_block").style.display = "none";
		} 
		
	if (target.id == "religious") { 
		document.getElementById("lifestyle_block").style.display = "none";
		document.getElementById("news_block").style.display = "none";
		document.getElementById("family_block").style.display = "none";
		document.getElementById("movies_block").style.display = "none";
		document.getElementById("sports_block").style.display = "none";
		document.getElementById("education_block").style.display = "none";
		document.getElementById("music_block").style.display = "none";
		document.getElementById("public_block").style.display = "none";
		document.getElementById("religious_block").style.display = "block";
		document.getElementById("shopping_block").style.display = "none";
		document.getElementById("audio_block").style.display = "none";
		} 
		
	if (target.id == "shopping") { 
		document.getElementById("lifestyle_block").style.display = "none";
		document.getElementById("news_block").style.display = "none";
		document.getElementById("family_block").style.display = "none";
		document.getElementById("movies_block").style.display = "none";
		document.getElementById("sports_block").style.display = "none";
		document.getElementById("education_block").style.display = "none";
		document.getElementById("music_block").style.display = "none";
		document.getElementById("public_block").style.display = "none";
		document.getElementById("religious_block").style.display = "none";
		document.getElementById("shopping_block").style.display = "block";
		document.getElementById("audio_block").style.display = "none";
		} 
		
	if (target.id == "audio") { 
		document.getElementById("lifestyle_block").style.display = "none";
		document.getElementById("news_block").style.display = "none";
		document.getElementById("family_block").style.display = "none";
		document.getElementById("movies_block").style.display = "none";
		document.getElementById("sports_block").style.display = "none";
		document.getElementById("education_block").style.display = "none";
		document.getElementById("music_block").style.display = "none";
		document.getElementById("public_block").style.display = "none";
		document.getElementById("religious_block").style.display = "none";
		document.getElementById("shopping_block").style.display = "none";
		document.getElementById("audio_block").style.display = "block";
		} 

	if (target.id == "allsports") { 
		document.getElementById("football_block").style.display = "block";
		document.getElementById("basketball_block").style.display = "block";
		document.getElementById("soccer_block").style.display = "block";
		document.getElementById("hockey_block").style.display = "block";
		document.getElementById("multisport_block").style.display = "block";
		} 

	if (target.id == "football") { 
		document.getElementById("football_block").style.display = "block";
		document.getElementById("basketball_block").style.display = "none";
		document.getElementById("soccer_block").style.display = "none";
		document.getElementById("hockey_block").style.display = "none";
		document.getElementById("multisport_block").style.display = "none";
		} 
		
	if (target.id == "basketball") { 
		document.getElementById("football_block").style.display = "none";
		document.getElementById("basketball_block").style.display = "block";
		document.getElementById("soccer_block").style.display = "none";
		document.getElementById("hockey_block").style.display = "none";
		document.getElementById("multisport_block").style.display = "none";
		} 

	if (target.id == "soccer") {
		document.getElementById("football_block").style.display = "none";
		document.getElementById("basketball_block").style.display = "none";
		document.getElementById("soccer_block").style.display = "block";
		document.getElementById("hockey_block").style.display = "none";
		document.getElementById("multisport_block").style.display = "none";
		}
		
	if (target.id == "hockey") { 
		document.getElementById("football_block").style.display = "none";
		document.getElementById("basketball_block").style.display = "none";
		document.getElementById("soccer_block").style.display = "none";
		document.getElementById("hockey_block").style.display = "block";
		document.getElementById("multisport_block").style.display = "none";
		} 
		
}