function toggle(obj){	
	var el = document.getElementById(obj);	
	var linkShow = document.getElementById(obj+"_show");	
	var linkHide = document.getElementById(obj+"_hide");
	if(el.style.display != 'none'){
		el.style.display = 'none';		
		linkShow.style.display = '';	
		linkHide.style.display = 'none';
	}else{
		el.style.display = '';
		linkShow.style.display = 'none';	
		linkHide.style.display = '';					
	}	
}
 
function toggleImg(obj){	
	var el = document.getElementById(obj);	
	if(el.style.display != 'none'){
		el.style.display = 'none';		
	}else{
		el.style.display = '';		
	}	
}