if (document.images) {

  image0on = new Image();
  image0on.src = "ga/images/but_enter_on.jpg";

  image0off = new Image();
  image0off.src = "ga/images/but_enter_off.jpg";

  image0aon = new Image();
  image0aon.src = "wpd/images/but_enter_on.gif";

  image0aoff = new Image();
  image0aoff.src = "wpd/images/but_enter_off.gif";

  image0bon = new Image();
  image0bon.src = "ga/images/but_nenter_on.jpg";

  image0boff = new Image();
  image0boff.src = "ga/images/but_nenter_off.jpg";

  image1on = new Image();
  image1on.src = "images/but_enter_on.jpg";

  image1off = new Image();
  image1off.src = "images/but_enter_off.jpg";

}

function turnOn(imageName) {
  if (document.images) {
    document[imageName].src = eval(imageName + "on.src");
  }
}

function turnOff(imageName) {
  if (document.images) {
    document[imageName].src = eval(imageName + "off.src");
  }
}

function winopen(url,stuff,morestuff) {
     window.open(url,stuff,morestuff);
}

function checkSub(){
	var strerror;
	strerror = "";
	if (document.frm.BName.value==""){
		strerror = "The billing name is required.\n" + strerror;;
	}
	if (document.frm.BAd.value==""){
		strerror = "The billing address is required.\n" + strerror;;
	}
	if (document.frm.BCity.value==""){
		strerror = "The billing city is required.\n" + strerror;;
	}
	if (document.frm.BState.selectedIndex < 1){
		strerror = "The billing state is required.\n" + strerror;;
	}
	if (document.frm.BZip.value==""){
		strerror = "The billing zip code is required.\n" + strerror;;
	}
	if (document.frm.Phone.value == "") {
		strerror = "The phone number is required.\n" + strerror;;
	}
	if (document.frm.license.checked == 0) {
		strerror = "The license agreement must be accepted.\n" + strerror;;
	}
	if (document.frm.Pm.selectedIndex < 1) {
		strerror = "The payment method is required.\n" + strerror;;
	}
	if (document.frm.Pm.selectedIndex == 2) {
		if (document.frm.CCname.value == "") {
			strerror = "The credit card name is required.\n" + strerror;;
		}
		if (document.frm.CCmon.value == "") {
			strerror = "The credit card expiration month is required.\n" + strerror;;
		}
		if (document.frm.CCyr.value == "") {
			strerror = "The credit card expiration year is required.\n" + strerror;;
		}
		if (document.frm.ccsec.value == "") {
			strerror = "The credit card security code is required.\n" + strerror;;
		}
		if (document.frm.CCnum.value == "") {
			strerror = "The credit card number is required.\n" + strerror;;
		}
	}
	if (document.frm.Pm.selectedIndex == 3) {
		if (document.frm.CCname.value == "") {
			strerror = "The credit card name is required.\n" + strerror;;
		}
		if (document.frm.CCmon.value == "") {
			strerror = "The credit card expiration month is required.\n" + strerror;;
		}
		if (document.frm.CCyr.value == "") {
			strerror = "The credit card expiration year is required.\n" + strerror;;
		}
		if (document.frm.ccsec.value == "") {
			strerror = "The credit card security code is required.\n" + strerror;;
		}
		if (document.frm.CCnum.value == "") {
			strerror = "The credit card number is required.\n" + strerror;;
		}
	}
	if (document.frm.Email.value == "") {
		strerror = "The email is required.\n" + strerror;
	} else if (document.frm.Email.value.search(/^.+\@.+\..+$/) == -1) {
		strerror = "The email address is not valid.\n" + strerror;
	}
	if (strerror != ""){
		alert(strerror);
	}else{
		document.frm.submit();
	}
}

function checkContact(){
	var strerror;
	strerror = "";
	if (document.contact.email.value == "") {
		strerror = "The email address is required.\n" + strerror;
	} else if (document.contact.email.value.search(/^.+\@.+\..+$/) == -1) {
		strerror = "The email address is not valid.\n" + strerror;
	}
	if (strerror != ""){
		alert(strerror);
	}else{
		document.contact.submit();
	}
}