function toggleBox(szDivID, iState) // 1 visible, 0 hidden
{
    if(document.layers)	   //NN4+
    {
       document.layers[szDivID].visibility = iState ? "show" : "hide";
    }
    else if(document.getElementById)	  //gecko(NN6) + IE 5+
    {
        var obj = document.getElementById(szDivID);
        obj.style.visibility = iState ? "visible" : "hidden";
    }
    else if(document.all)	// IE 4
    {
        document.all[szDivID].style.visibility = iState ? "visible" : "hidden";
    }
}

var onImage = new Array();
var offImage = new Array();	


function preLoadImages(theImages){


	var totalImages = theImages.length;

//alert(totalImages);

	if (document.images){ 

		for (var x = 0; x <= totalImages; x++){

			var theImage = theImages[x];

			onImage[theImage] = new Image() ;  
			onImage[theImage].src = "images/" + theImage + "_on.gif";
		
			offImage[theImage] = new Image() ;  
			offImage[theImage].src = "images/" + theImage + "_off.gif";

		}

	}

}

function imgOn(imgName,theImage){ 

	if (document.images){
		document.getElementById(theImage).src = onImage[imgName].src;
	} 

}
function imgOff1(imgName,theImage){ 
		if (document.images){ 
			document.getElementById(theImage).src = offImage[imgName].src;
		}
		
}


// POP-UP WINDOWS - positions pop-up in center of screen 

var win= null;
function NewWindow(mypage,myname,w,h,scroll){
  var winl = (screen.width-w)/2;
  var wint = (screen.height-h)/2;
  var settings  ='height='+h+',';
      settings +='width='+w+',';
      settings +='top='+wint+',';
      settings +='left='+winl+',';
      settings +='scrollbars='+scroll+',';
      settings +='resizable=yes';
  win=window.open(mypage,myname,settings);
  if(parseInt(navigator.appVersion) >= 4){win.window.focus();}
}