<!--

//
// Navigation rollovers 
//
function initRollovers() {
	if (!document.getElementById) return
	
	var aPreLoad = new Array();
	var sTempSrc;
	var aImages = document.getElementsByTagName('img');
	
	for (var i = 0; i < aImages.length; i++) {
		if (aImages[i].className == 'img_rollover') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '-o'+ftype);
			
			aImages[i].setAttribute('hsrc', hsrc);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			aImages[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}
			
			aImages[i].onmouseout = function() {
				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('-o'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
	return true;
}

window.onload = initRollovers;



// test whether an input text, textarea or select field is empty
// also trim the input string from leading and trailing whitespace
// expect parameter f to be a field element of a form (object)
// v1.0 - 4.10.2003 -  Kemal Djakman - VVBS Web Services
function isEmpty( f ) {
	if (f.type == 'text' || f.type == 'textarea') {
		re = /^\s+|\s+$/g;
		return (!f.value.replace(re,''));
	} else if (f.type == 'select-one' || f.type == 'select-multiple') {
		return (!f.value);
	}
	return true;
}


// test whether none of the specified fields in form are empty
// (test is limited to text, textarea and select fields)
// 1st parameter is an form object
// 2nd parameter is an array of field names
// v1.0 - 4.10.2003 -  Kemal Djakman - VVBS Web Services
function ValidateRequired( form, fields ) {
	var emsg = '';

	for (i=0; i<fields.length; i++) {
		F = form[fields[i]];
		if (F && F.type && isEmpty(F)) {
			emsg += ('- ' + (F.title ? F.title : F.name) + "\n");
		}
	}

	if (emsg) {
		alert('Error: The folowing fields are missing:\n' + emsg);
		return false;
	}
	return true;
}



//
// Macromedia rollovers
//
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_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=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.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_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
//-->