// conatins commonly used functions that are invariant accross the website 

function preload(imgObj,imgSrc) {
	if (document.images) {
		eval(imgObj + 'On = new Image()')
		eval(imgObj + 'On.src = imgSrc + "on.gif"')
		eval(imgObj + 'Off = new Image()')
		eval(imgObj + 'Off.src = imgSrc + "off.gif"')
	}
}

function img_act(imgName) {
 	imgOn = eval(imgName + "On.src");
        document [imgName].src = imgOn;
}

function img_inact(imgName) {
        imgOff = eval(imgName + "Off.src");
        document [imgName].src = imgOff;
}

function openWindow(windowURL,windowName,windowWidth,windowHeight,x,y,scroll) {
	  newWindow = window.open(windowURL,windowName,'width='+windowWidth+',height='+windowHeight+',left='+x+',top='+y+',toolbar=0,location=0,directories=0,status=0,menuBar=0,scrollBars='+scroll+',resizable=0');
	  newWindow.focus();
}

function findObj(n, d) { //v4.0
  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 && document.getElementById) x=document.getElementById(n); return x;
}

function preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}