<!--

function validateForm(formObj)
{
	if (emptyField(formObj.salutation))
		alert("Please select your salutation.");
	else if(emptyField(formObj.firstname))
		alert("Please input your first name.");
	else if(emptyField(formObj.lastname))
		alert("Please input your last name.");
	else if(emptyField(formObj.title))
		alert("Please input your title.");
	else if(emptyField(formObj.company))
		alert("Please input your company name.");
	else if(emptyField(formObj.address1))
		alert("Please input your street address.");
	else if(emptyField(formObj.city))
		alert("Please input your city.");
	else if(emptyField(formObj.state))
		alert("Please select your state or province.");
    else if(emptyField(formObj.email))
		alert("Please input your email address.");		
    else if(emptyField(formObj.phone))
		alert("Please input your phone number.");		
    else if(emptyField(formObj.industry))
		alert("Please select your industry.");		
    else if(emptyField(formObj.revenue))
		alert("Please input your company's annual revenue.");		
    else if(emptyField(formObj.cc_number))
		alert("Please input your credit card number.");		
	else if(!document.forms[0].cancellation.checked)
		alert("You must agree to the conference cancellation policy before registering.");

	else return true;

	return false;
}



function emptyField(textObj)
{
	if (textObj.value.length == 0) return true;
		for (var i = 0; i<textObj.value.length; ++i) {
			var ch = textObj.value.charAt(i);
			if (ch != ' ' && ch != '\t') return false;
		}
	return true;
}



function check_passes(txtObj1,txtObj2)
{
	var pass = txtObj1.value;
	var con_pass = txtObj2.value;

	if (pass == con_pass)
	{
		return false;
	}

	return true;
}



function verifyEmail(email)
{
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(email.value))
	{
		return false;
	}


	//alert("Invalid E-mail Address! Please re-enter.");
	//email.focus();
	return true;
}



function stripBadchs(id,status) 
{
	var bad = 0
	
	for (i = 0; i < id.value.length; i++)
	{
		ch = id.value.substring(i, i + 1);
		if ( status == "letters or numbers" ) { if ( (ch < "a" || "z" < ch) && (ch < "A" || "Z" < ch) && (ch < "0" || "9" < ch) ) { bad = 1; } }
		if ( status == "letters" ) { if ( (ch < "a" || "z" < ch) && (ch < "A" || "Z" < ch) ) { bad = 1; } }
		if ( status == "dollar value" ) { if ((ch == "$") || (ch == ",")) { bad = 1 } }
		if ( status == "numbers" ) { if (ch < "0" || "9" < ch) { bad = 1 } }
		if ( bad == 1 )
		{
			id.value = id.value.substring(0,i)+id.value.substring(i+1,id.value.length)
			i=(i-1);
			bad = 0;
		}
	}
}



function formatPhone(id)
{
	if (id.value != "") {
		stripBadchs(id,'numbers')
		id.value = "(" + id.value.substring(0,3) + ") " + id.value.substring(3,6) + "-" + id.value.substring(6,10)
	}
}


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) { //v4.01
  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_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];}
}
//-->