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) { //v4.0
  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 PopUp(theURL,winName,features) {
        window.open(theURL,winName,features);
}
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
/*
The isEmpty and isWhitespace functions were taken straight from Netscape's JavaScript development site, http://developer.netscape.com.
*/


// whitespace characters
var whitespace = " \t\n\r";

/****************************************************************/

// Check whether string s is empty.
function isEmpty(s)
{ return ((s == null) || (s.length == 0)) }

/****************************************************************/

function isWhitespace (s)
{
   var i;

   // Is s empty?
   if (isEmpty(s)) return true;

   // Search through string's characters one by one
   // until we find a non-whitespace character.
   // When we do, return false; if we don't, return true.

   for (i = 0; i < s.length; i++)
   {
	// Check that current character isn't whitespace.
	var c = s.charAt(i);

	if (whitespace.indexOf(c) == -1) return false;
   }

   // All characters are whitespace.
   return true;
}

/****************************************************************/

function ForceEntry(val, str) {
   var strInput = new String(val.value);

   if (isWhitespace(strInput)) {
	alert(str);
	return false;
   } else
	return true;

}

/****************************************************************/

function CheckSelection(val, str) {
	var isSelected = val.selectedIndex
	if (isSelected == 0) {
		alert(str);
		return false;}
	else{
		return true;
	}
}

function validateForm(theForm) {
	if (theForm.name.value == "")
	{
		alert("Please enter your name");
		theForm.name.focus();
		return(false);
	}
	if (theForm.address.value == "")
	{
		alert("Please enter your address");
		theForm.name.focus();
		return(false);
	}
	else if (theForm.email.value == "")
	{
		alert("Please enter your email address");
		theForm.email.focus();
		return(false);
	}
	else if (!isEmail(theForm.email.value))
	{
		alert("Please enter your email address in the correct format");
		theForm.email.focus();
		return(false);
	}
	else if (theForm.phone.value == "")
	{
		alert("Please enter your telephone number");
		theForm.phone.focus();
		return(false);
	}
	return(true);
}


function isEmail(formInput)
{
	var atpos, dotpos, lastpos;
		apos = formInput.indexOf("@");
		dotpos = formInput.lastIndexOf(".");
		lastpos = formInput.length-1;
		if (apos < 1 || dotpos - apos < 2 || lastpos - dotpos > 3 || lastpos - dotpos < 2)
		{
			return(false);
		}
		return(true);
}
