// JScript File
function ufoOn(placardImage, buttonPosition, buttonImage){
	swapImage('placard','',placardImage,1);
	swapImage(buttonPosition,'',buttonImage,1);
}

function ufoOff(){
	swapImgRestore();
	swapImage('placard','','../images/ilm/lifecycle.gif',1);
}
function preloadUfo(){
doPreloadImages('../images/ilm/validate.gif','../images/ilm/intLearningNav_2_2.gif','../images/ilm/support.gif','../images/ilm/intLearningNav_4_2.gif','../images/ilm/reinforce.gif','../images/ilm/intLearningNav_8_2.gif','../images/ilm/assess.gif','../images/ilm/intLearningNav_3_2.gif','../images/ilm/learn.gif','../images/ilm/intLearningNav_6_2.gif');
}

function doPreloadImages() 
{ 
	var d=document;
	if(d.images)
	{
		if(!d.p) d.p=new Array();

		var i,j=d.p.length,a=doPreloadImages.arguments; 
		for(i=0; i<a.length; i++)
		if (a[i].indexOf('#')!=0)
		{
			d.p[j]=new Image; d.p[j++].src=a[i];
		}
	}
}

function swapImage() 
{
	var i,j=0,x,a=swapImage.arguments;
	document.sr=new Array;

	for(i=0;i<(a.length-2);i+=3)
	if ((x=findObj(a[i]))!=null)
	{
		document.sr[j++]=x;
		if(!x.oSrc) x.oSrc=x.src;
		x.src=a[i+2];
	}
}

function swapImgRestore() 
{ 
	var i,x,a=document.sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function findObj(n, d) 
{ //v4.01
	var p,i,x;
	if(!d) d=document;
	if((p=n.indexOf('?'))>0&&parent.frames.length)
	{
		d=parent.frames[n.substring(p+1)].document;
		n=n.substring(0,p);
	}
	if(!(x=d[n])&&d.all) x=d.all[n];
	for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
 	
	for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=findObj(n,d.layers[i].document);
	
	if(!x && d.getElementById) x=d.getElementById(n);
	
	return x;
}