// JavaScript Document
function HideDiv(ID){
		document.getElementById(ID).style.display='none';
	}
	
	function ShowDiv(ID){
		document.getElementById(ID).style.display='';
	}
	
	function ShowHideDiv(ID){
		if(document.getElementById(ID).style.display==''){
			HideDiv(ID);
		}else{
			HideAll("cat",7);
			ShowDiv(ID);
		}
	}
	
	function HideAll(prefix,iterations){
		for (i=1;i<=iterations;i++){
			HideDiv(prefix+i);
		}
	}