function MM_validateForm() { //v4.0
  if (document.getElementById){
    var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
    for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=document.getElementById(args[i]);
      if (val) { nm=val.name; if ((val=val.value)!="") {
        if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
          if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
        } else if (test!='R') { num = parseFloat(val);
          if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
          if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
            min=test.substring(8,p); max=test.substring(p+1);
            if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
      } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
    } if (errors) alert('The following error(s) occurred:\n'+errors);
    document.MM_returnValue = (errors == '');
} }





<!--
/*
 * removeAmpersands
 *
 * removes ampersand characters from the specified input field
 * value. Replaces the ampersand with 'and'.
 */
function removeAmpersands (inField) {

	// replace '&' character with 'and'
	var pairs = inField.value.split("&");
	var newValue = '';
	newValue = pairs[0];
	for (var i=1; i < pairs.length; i++) newValue += 'and' + pairs[i];
	inField.value = newValue;
}
<!--

//-->
/*
 * passwordConfirm()
 * version 1.0
 *
 * ensures password contains only letters, number & '_' character. Also ensures 
 * duplicate password is in fact a duplicate. clears password if non-valid.
 * accepts password field
 */
function passwordConfirm (inPW, inPWduplicate) {




  
    // ensure password and duplicate are equal
    if ((inPWduplicate.value != inPW.value)) {
      alert('ensure email and retyped email are the same');
	  inPWduplicate.value = '';
	  
    }
	
	
  }
  
  function emailValid(form1)
{
	if (re.test(form1.orderEmail.value))
	{
		alert('email is valid');
		return true;
	}

	alert("Invalid email address");
	form1.orderEmail.focus();
	form1.orderEmail.select();
	return false;
}

var re= "^\w+([\,-]?\w+([\,-]?\w+)*(\.\w{2,3})+$";

function submitIt(form1)
{
	if (re.test(form1.orderEmail.value)) return true;
	if(!validEmail(form1.orderEmail,value))
	{
		alert("Invalid email address")
		form1.orderEmail.focus()
		form1.orderEmail.select()
		return false;
	}

	return true;
}

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_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
  } if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
}


function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}