function write_this(){
	document.form.chargetotal.value = document.form.confReg.value*350;
	}
	
	function start(){
	setInterval("write_this()",200);
	}
	
	function KeyCheck(myfield,e)
{
var keycode;
if (window.event) keycode = window.event.keyCode;
else if (e) keycode = e.which;
else return true;
if (((keycode>47) && (keycode<58) )  || (keycode==8)) { return true; }
else return false;
}	
	
	
	function isEmail(elm) {
	    var pattern = /^[-a-zA-Z0-9\- \.]+\@[a-zA-Z0-9 \-\.]+\.([a-zA-Z]{2,3})$/;
	    if (pattern.test(elm.value)) {
	        return true;
	    }
	    else {
	        return false;
	        }
	    }
	    
	function isFilled(elm) {
	if (elm.value =="" || elm.value == null) {
	    return false;
	    }
	else {
	    return true;
	    }
	}
	
	function isReady(form) {
	    if (isEmail(form.email) == false) {
	        alert("Please enter a valid email address.");
	        form.email.focus();
	        return false;
	        }
	        
	   	 if (isFilled(form.bcompany) == false) {
	    alert("Please enter your company's full name.");
	    form.bcompany.focus();
	    return false;
	    }
	    
	    if (isFilled(form.bname) == false) {
	    alert("Please enter your full name.");
	    form.bname.focus();
	    return false;
	    }
	    var conf=document.form.confReg
	    if (conf.value>=2) {
	    alert("You may only register one person per transaction.");
	    conf.focus()
	    return false
	    }
	    	        

var digits = "0123456789";
// non-digit characters which are allowed in phone numbers
var phoneNumberDelimiters = "()- ";
// characters which are allowed in international phone numbers
// (a leading + is OK)
var validWorldPhoneChars = phoneNumberDelimiters + "+";
// Minimum no of digits in an international phone no.
var minDigitsInIPhoneNumber = 10;

function isInteger(s)
{   var i;
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag)
{   var i;
    var returnString = "";
    for (i = 0; i < s.length; i++)
    {   
          var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function checkInternationalPhone(strPhone){
s=stripCharsInBag(strPhone,validWorldPhoneChars);
return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}

	var Phone=document.form.phone
	
	if ((Phone.value==null)||(Phone.value=="")){
		alert("Please Enter your Phone Number")
		Phone.focus()
		return false
	}
	if (checkInternationalPhone(Phone.value)==false){
		alert("Please Enter a Valid Phone Number")
		Phone.value=""
		Phone.focus()
		return false
	}
	    
	 return true;
	 }