function doSection (section,chgif){
	if(section == "cats_data"){
		e = document.getElementsByTagName("DIV");
		s = document.getElementsByName(section);

		for(var i=0;i<e.length;i++){
			if(e[i].className == "text_description"){
				e[i].style.display="none";
			}
		}
		return false;
	}else{
		if (document.getElementById(section).style.display=="none"){
			document.getElementById(section).style.display="";
		}else{
			document.getElementById(section).style.display="none";
		}
		return false;				
	}		
}