// Author: James Craig

// one browser sniff to account for a known bug
var sUserAgent = navigator.userAgent.toLowerCase();
var isOp = (sUserAgent.indexOf('opera')!=-1)?true:false;

// make new popup window
function pop(oAnchor,sProps,sWindow){
	var sUrl = '';

	// get URL from calling link oAnchor
	if(oAnchor.getAttribute) sUrl = oAnchor.getAttribute('href');
	if(sUrl=='') sUrl = oAnchor.href;

	// if still no URL, return true and let the regular link take over
	if(sUrl=='') return true;

	// set window name ('_blank' for new window each time) ('reusedWindow' is the other option)
	var sWindowName = sWindow?sWindow:'reusedWindow';

	// if no window properties are defined in the function call's optional parameter 'sProps'
	if(!sProps) sProps = null;

	// assign the popup to this variable so we can verify it exists
	if(sUrl) var oPopup = window.open(sUrl,sWindowName,sProps);

	// An Opera bug returns too early if you focus the window, so we don't focus it in that browser.
	// Only a noticable defect if a window is already open and hidden.
	if(oPopup && !isOp) oPopup.focus();

	// If popup was created successfully, cancel link in calling window.
	// Acts as regular link in browser that blocks requested popups or has JavaScript turned off.
	return (oPopup)?false:true;

}

// switch an image src without preloading and leave it
function switchImg(sImg,sSrc){
	oImg = document.images[sImg];
	// return true or false based on assignment
	return !(oImg.src = 'img/' + sSrc);
}

// With onkeypress event, this verifies 'Enter' key
function verifyKey(oElement,oEvent){
	if(oEvent.keyCode==13 && oElement.onclick) oElement.onclick();
}

// Macromedia Dreamweaver scripts

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 MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_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=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_popupMsg(msg) { //v1.0
  alert(msg);
}