// JavaScript Document
function showFilter(a, b) {
	
	
	if (document.getElementById(a).style.display == 'block'){
		document.getElementById(a).style.display = 'none';
	} else { document.getElementById(a).style.display = 'block'; }
		
	if (document.getElementById(a).style.display == 'block')
	 {
	  document.getElementById(b).style.display='none';
	 } 
	
}