// Validation by Henrik Petersen / NetKontoret Explained at www.echoecho.com/jsforms.htm
//Functions: do not change

 function emailvalidation(entered, alertbox){
with (entered){
apos=value.indexOf("@");
dotpos=value.lastIndexOf(".");
lastpos=value.length-1;
if (apos<1 || dotpos-apos<2 || lastpos-dotpos>3 || lastpos-dotpos<2)
{if (alertbox) {alert(alertbox);} return false;}
else {return true;}
}
}


function valuevalidation(entered, min, max, alertbox, datatype){
with (entered){
checkvalue=parseFloat(value);
if (datatype)
{smalldatatype=datatype.toLowerCase();
if (smalldatatype.charAt(0)=="i") {checkvalue=parseInt(value)};
}
if ((parseFloat(min)==min && checkvalue<min) || (parseFloat(max)==max && checkvalue>max) || value!=checkvalue)
{if (alertbox!="") {alert(alertbox);} return false;}
else {return true;}
}
}


function digitvalidation(entered, min, max, alertbox, datatype){
with (entered){
checkvalue=parseFloat(value);
if (datatype)
{smalldatatype=datatype.toLowerCase();
if (smalldatatype.charAt(0)=="i")
{checkvalue=parseInt(value); if (value.indexOf(".")!=-1) {checkvalue=checkvalue+1}};
}
if ((parseFloat(min)==min && value.length<min) || (parseFloat(max)==max && value.length>max) || value!=checkvalue)
{if (alertbox!="") {alert(alertbox);} return false;}
else {return true;}
}
}

function emptyvalidation(entered, alertbox){
with (entered){
if (value==null || value=="")
{if (alertbox!="") {alert(alertbox);} return false;}
else {return true;}
}
}
//End Functions

//Customize Here
function formvalidation(thisform){
	with (thisform){
		if (emptyvalidation(CardType,"Please select a card type.")==false) {CardType.focus(); return false;};
		if (digitvalidation(CardNumber,"Please enter your credit card number.")==false) {CardNumber.focus(); return false;};
		if (digitvalidation(expMonth,"Please select Month.")==false) {expMonth.focus(); return false;};
		if (digitvalidation(expYear,"Please select Year.")==false) {expYear.focus(); return false;};
		if (digitvalidation(CVV,"Please enter a valid Card Security Code.")==false) {CVV.focus(); return false;};
		//if (emptyvalidation(subject,"Please enter a valid subject.")==false) {subject.focus(); return false;};
		//if (emptyvalidation(comments,"Please enter a valid comment.")==false) {comments.focus(); return false;};
}
}