function chunk_tab(id){
	var tab_body;
	var tab_link;
	var chunk_count = 3;
	var x = 1;
	
	while (x <= chunk_count) {
		tab_body = MM_findObj('chunk'+x);
		tab_link = MM_findObj('tablist'+x);
		
		
		if(x == id){
			tab_body.style.display = 'inline';
			
			tab_link.style.color = '#000000'
			tab_link.style.fontWeight = 'bold';
		//	tab_link.style.backgroundImage = "url(/images/h3_purple_grad_over.gif)";
		}else{
			tab_body.style.display = 'none';	
			//tab_link.style.backgroundImage = "url(/images/h3_purple_grad.gif)";
			tab_link.style.color = '#666666';
			tab_link.style.fontWeight = 'bold';
			
		}
		x ++;
	}
	
}