/**
 * EFX .js lib Version 1.0
 *  
 * - MM_swapImgRestore
 * - MM_preloadImages
 * - MM_swapImage
 * - MM_openBrWindow
 * - MM_findObj
 * - MM_validateForm
 *
 */
function isUndefined(v) {
    var undef;
    return v===undef;
}

function raw_popup(url, target, features) {
    // pops up a window containing url optionally named target, optionally having features
    if (isUndefined(features)) features = _POPUP_FEATURES;
    if (isUndefined(target  )) target   = '_blank';
    var theWindow = window.open(url, target, features);
    theWindow.focus();
    return theWindow;
}

function link_popup(src, features) {
    // to be used in an html event handler as in: <a href="..." onclick="link_popup(this,...)" ...
    // pops up a window grabbing the url from the event source's href
    return raw_popup(src.getAttribute('href'), src.getAttribute('target') || '_blank', features);
}

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_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_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_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_findObj(n, d) { //v3.0
  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=MM_findObj(n,d.layers[i].document); return x;
}

function MM_validateForm() { //v2.0
  var i,objStr,field,theCheck,atPos,theNum,colonPos,min,max,errors='';
  for (i=0; i<(MM_validateForm.arguments.length-2); i+=3) {
    objStr = MM_validateForm.arguments[(navigator.appName == 'Netscape')?i:i+1];
    if ((objStr.indexOf('document.layers[')==0 && document.layers==null) ||
        (objStr.indexOf('document.all[')   ==0 && document.all   ==null))
      objStr = 'document'+objStr.substring(objStr.substring(0,objStr.lastIndexOf('.')).
                 lastIndexOf('.'),objStr.length);  //fix layer ref if not supp
    field = eval(objStr);
    field.name = (field.name)?field.name:objStr;
    theCheck = MM_validateForm.arguments[i+2];
    if (field.value) { //IF NOT EMPTY FIELD
      if (theCheck.indexOf('isEmail') != -1) { //CHECK EMAIL
        atPos = field.value.indexOf('@');
        if (atPos < 1 || atPos == (field.value.length - 1))
          errors += '- '+(field.name).substring(0,(field.name).length -2)+' must contain an e-mail address.\n';
      } else if (theCheck != 'R') { //START NUM CHECKS
        theNum = parseFloat(field.value);
        if (field.value != ''+theNum) errors += '- '+field.name+' must contain a number.\n';
        if (theCheck.indexOf('inRange') != -1) { //CHECK RANGE
          colonPos = theCheck.indexOf(':');
          min = theCheck.substring(8,colonPos);
          max = theCheck.substring(colonPos+1,theCheck.length);
          if (theNum < min || max < theNum) //bad range
            errors += '- '+(field.name).substring(0,(field.name).length -2)+' must contain a number between '+min+' and '+max+'.\n';
    } } }
    else if (theCheck.charAt(0) == 'R') errors += '- '+(field.name).substring(0,(field.name).length -2)+' is required.\n';
  }
  if (errors) alert('The following error(s) occurred:\n'+
                    errors);
  document.MM_returnValue = (errors == '')
}

/**
 *	Function ChangePage
 *  Added 25/02/04 BJW at EFX
*/
function ChangePage(page) {
	frame=page.substring(0,1);
	if (frame=="m") frame="main";
	else frame="_parent";
	window.open(page.substring(0),frame);
}
/**
 *	Function MM_jumpMenu
 *  Added 09/03/04 BJW at EFX
*/
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}