/*******************************************************************
* Javascript code to initialize the banner and common functions
********************************************************************/
function MM_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=MM_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];}}
}

 function launchCenter(url, name, height, width) {
  var str = "height=" + height + ",innerHeight=" + height;
  str += ",width=" + width + ",innerWidth=" + width;
  if (window.screen) {
    var ah = screen.availHeight - 30;
    var aw = screen.availWidth - 10;

    var xc = (aw - width) / 2;
    var yc = (ah - height) / 2;

    str += ",left=" + xc + ",screenX=" + xc;
    str += ",top=" + yc + ",screenY=" + yc;
	str +=",scrollbars=yes, resizable=yes, status=no, menubar=no, toolbar=no";
  }
  return window.open(url, name, str).focus();
}

var theImages = new Array() 

theImages[0] = 'img/banner1.jpg' 
theImages[1] = 'img/banner2.jpg' 
theImages[2] = 'img/banner3.jpg' 
theImages[3] = 'img/banner4.jpg' 

var j = 0 
var p = theImages.length; 
var preBuffer = new Array() 
for (i = 0; i < p; i++){ 
   preBuffer[i] = new Image() 
   preBuffer[i].src = theImages[i] 
} 
var whichImage = Math.round(Math.random()*(p-1)); 
function showImage(){ 
document.write('<img src="'+theImages[whichImage]+'" border=0 width=770 height=111>'); 
} 

/***********************************************
* Son of suckerfish, multilevel dropdown menu
***********************************************/
sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);