// JavaScript Document



/*

  function to swap image and button for the three zone graph
*/
function ThreeZoneSwap(strMapToChange,strImageButtonId){
	
	var arrayButton={'Last24button':'last24h','Last6button':'last6h','next6button':'next6h','next24button':'next24h'};
    var id=null;
	
	// loop in array to flip button to the user pressed button
	
	for(id in arrayButton){
	     //alert(id+strImageButtonId);
		 
	       if(id==strImageButtonId){
			   // swap to click button image
			     document.getElementById(id).src="images/"+arrayButton[id]+"flip.gif";
				  //alert("yes");
				 
		   }else{
			   
			     // alert("no");
			   
			     //put default image for button   
				 if(document.getElementById(id) == null){
                      // do nothing
				 }else{
					 document.getElementById(id).src="images/"+arrayButton[id]+".gif";
				 }
		  }
		   
		   
	   
	}
	
	
	var objInitialMap=document.getElementById('next6image');
	objInitialMap.src=strMapToChange;
	
}