function isEmail( EMAIL ) {
	if(!isEmail2(EMAIL.value)) {
	  alert("Please insert a valid email address.");
	  EMAIL.value = "";
	 }
}

function isEmail2(emailStr) {

    /* The following variable tells the rest of the function whether or not
    to verify that the address ends in a two-letter country or well-known
    TLD.  1 means check it, 0 means don't. */

    var checkTLD=1;

    /* The following is the list of known TLDs that an e-mail address must end with. */

    var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;

    /* The following pattern is used to check if the entered e-mail address
    fits the user@domain format.  It also is used to separate the username
    from the domain. */

    var emailPat=/^(.+)@(.+)$/;

    /* The following string represents the pattern for matching all special
    characters.  We don't want to allow special characters in the address.
    These characters include ( ) < > @ , ; : \ " . [ ] */

    var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";

    /* The following string represents the range of characters allowed in a
    username or domainname.  It really states which chars aren't allowed.*/

    var validChars="\[^\\s" + specialChars + "\]";

    /* The following pattern applies if the "user" is a quoted string (in
    which case, there are no rules about which characters are allowed
    and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
    is a legal e-mail address. */

    var quotedUser="(\"[^\"]*\")";

    /* The following pattern applies for domains that are IP addresses,
    rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
    e-mail address. NOTE: The square brackets are required. */

    var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;

    /* The following string represents an atom (basically a series of non-special characters.) */

    var atom=validChars + '+';

    /* The following string represents one word in the typical username.
    For example, in john.doe@somewhere.com, john and doe are words.
    Basically, a word is either an atom or quoted string. */

    var word="(" + atom + "|" + quotedUser + ")";

    // The following pattern describes the structure of the user

    var userPat=new RegExp("^" + word + "(\\." + word + ")*$");

    /* The following pattern describes the structure of a normal symbolic
    domain, as opposed to ipDomainPat, shown above. */

    var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");

    /* Finally, let's start trying to figure out if the supplied address is valid. */

    /* Begin with the coarse pattern to simply break up user@domain into
    different pieces that are easy to analyze. */

    var matchArray=emailStr.match(emailPat);

    if (matchArray==null) {

        /* Too many/few @'s or something; basically, this address doesn't
        even fit the general mould of a valid e-mail address. */

        //~ alert("Email address seems incorrect (check @ and .'s)");
        return false;
    }
    var user=matchArray[1];
    var domain=matchArray[2];

    // Start by checking that only basic ASCII characters are in the strings (0-127).

    for (i=0; i<user.length; i++) {
        if (user.charCodeAt(i)>127) {
            //~ alert("Ths username contains invalid characters.");
            return false;
        }
    }
    for (i=0; i<domain.length; i++) {
        if (domain.charCodeAt(i)>127) {
            //~ alert("Ths domain name contains invalid characters.");
            return false;
        }
    }

    // See if "user" is valid

    if (user.match(userPat)==null) {

        // user is not valid

        //~ alert("The username doesn't seem to be valid.");
        return false;
    }

    /* if the e-mail address is at an IP address (as opposed to a symbolic
    host name) make sure the IP address is valid. */

    var IPArray=domain.match(ipDomainPat);
    if (IPArray!=null) {

    // this is an IP address

    for (var i=1;i<=4;i++) {
        if (IPArray[i]>255) {
            //~ alert("Destination IP address is invalid!");
            return false;
        }
    }
    return true;
    }

    // Domain is symbolic name.  Check if it's valid.

    var atomPat=new RegExp("^" + atom + "$");
    var domArr=domain.split(".");
    var len=domArr.length;
    for (i=0;i<len;i++) {
        if (domArr[i].search(atomPat)==-1) {
            //~ alert("The domain name does not seem to be valid.");
            return false;
        }
    }

    /* domain name seems valid, but now make sure that it ends in a
    known top-level domain (like com, edu, gov) or a two-letter word,
    representing country (uk, nl), and that there's a hostname preceding
    the domain or country. */

    if (checkTLD && domArr[domArr.length-1].length!=2 &&
        domArr[domArr.length-1].search(knownDomsPat)==-1) {
        //~ alert("The address must end in a well-known domain or two letter " + "country.");
        return false;
    }

    // Make sure there's a host name preceding the domain.

    if (len<2) {
        //~ alert("This address is missing a hostname!");
        return false;
    }

    // If we've gotten this far, everything's valid!
    return true;
}

function onlyNumber(STRING) {
	var STRING_VALUE = STRING.value;
	var STRING_regex = /[^0-9]/;
	if(STRING_regex.test(STRING_VALUE) == true) {
	   STRING.value = STRING_VALUE.substr(0,(STRING_VALUE.length)-1)
	}
}

function changeMethod(){
	document.getElementById( 'td_shipping' ).innerHTML = '<select><option>Loading...</option></select>';
	document.getElementById( 'frmOrder' ).target = 'hidden_shipping';
	document.getElementById( 'frmOrder' ).action = 'shipping_methods.php';
	document.getElementById( 'frmOrder' ).submit();
	document.getElementById( 'frmOrder' ).target = '_self';
	document.getElementById( 'frmOrder' ).action = 'order.php';
}

function changePayment( type ){
	if (type == "cc"){
		//alert('igual');
		document.getElementById('payment_table').style.display='';
		document.getElementById('payment_div').style.display='';
	} else {
		//alert('diferente');
		document.getElementById('payment_table').style.display='none';
		document.getElementById('payment_div').style.display='none';
	}
}

function sa_fill()
{
	if( document.getElementById('ba_first_name').value == '' ||
		document.getElementById('ba_last_name').value == '' ||
		document.getElementById('ba_address').value == '' ||
		document.getElementById('ba_city').value == '' ||
		document.getElementById('ba_postal_code').value == '' ||
		document.getElementById('ba_pstn_phone').value == '') {

		alert('First you need fill the field on Billing Information ');

	} else {
		document.getElementById('sa_first_name').value = document.getElementById('ba_first_name').value;
		document.getElementById('sa_last_name').value = document.getElementById('ba_last_name').value;
		document.getElementById('sa_address').value = document.getElementById('ba_address').value;
		document.getElementById('sa_address2').value = document.getElementById('ba_address2').value;
		document.getElementById('sa_city').value = document.getElementById('ba_city').value;
		document.getElementById('sa_state').value = document.getElementById('ba_state').value;
		document.getElementById('sa_postal_code').value = document.getElementById('ba_postal_code').value;
		var index = document.getElementById('ba_country').selectedIndex;
		document.getElementById('sa_country').selectedIndex = index;
		document.getElementById('sa_pstn_phone').value = document.getElementById('ba_pstn_phone').value;
		document.getElementById('sa_pstn_fax').value = document.getElementById('ba_pstn_fax').value;
		changeMethod();
	}

}

function ba_fill()
{
	if( document.getElementById('first_name').value == '' ||
		document.getElementById('last_name').value == '' ||
		document.getElementById('address1').value == '' ||
		document.getElementById('city').value == '' ||
		document.getElementById('postal_code').value == '' ||
		document.getElementById('pstn_phone_country').value == '' ||
		document.getElementById('pstn_phone_area').value == '' ||
		document.getElementById('pstn_phone_number').value == '' ) {

		alert('First you need fill the field on Account Information ');

	} else {

		document.getElementById('ba_first_name').value = document.getElementById('first_name').value;
		document.getElementById('ba_last_name').value = document.getElementById('last_name').value;
		document.getElementById('ba_address').value = document.getElementById('address1').value;
		document.getElementById('ba_address2').value = document.getElementById('address2').value;
		document.getElementById('ba_city').value = document.getElementById('city').value;
		document.getElementById('ba_state').value = document.getElementById('state').value;
		document.getElementById('ba_postal_code').value = document.getElementById('postal_code').value;
		var index = document.getElementById('country').selectedIndex;
		document.getElementById('ba_country').selectedIndex = index;
		var phone = document.getElementById('pstn_phone_country').value + ' ' + document.getElementById('pstn_phone_area').value + ' ' + document.getElementById('pstn_phone_number').value;
		document.getElementById('ba_pstn_phone').value = phone;
		var fax = document.getElementById('pstn_fax_country').value + ' ' + document.getElementById('pstn_fax_area').value + ' ' + document.getElementById('pstn_fax_number').value;
		document.getElementById('ba_pstn_fax').value = fax;
	}

}

function popProd(mylink, windowname)
{
if (! window.focus)return true;
var href;
if (typeof(mylink) == 'string')
   href=mylink;
else
   href=mylink.href;
window.open(href, windowname, 'width=450,height=350,scrollbars=yes, left=100, top=100,toolbar=no, menubar=no,resizable=no,location=no, directories=no, status=no');
return false;
}