Verify Credit Card Number

<XMP><body> <script type="text/javascript"> //OwnerIQ var __oiq_pct = 50; if( __oiq_pct>=100 || Math.floor(Math.random()*100/(100-__oiq_pct)) > 0 ) { var _oiqq = _oiqq || []; _oiqq.push(['oiq_addPageBrand','Lycos']); _oiqq.push(['oiq_addPageCat','Internet > Websites']); _oiqq.push(['oiq_addPageLifecycle','Intend']); _oiqq.push(['oiq_doTag']); (function() { var oiq = document.createElement('script'); oiq.type = 'text/javascript'; oiq.async = true; oiq.src = document.location.protocol + '//px.owneriq.net/stas/s/lycosn.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(oiq, s); })(); } /////// Google Analytics var _gaq = _gaq || []; _gaq.push(['_setAccount', 'UA-21402695-21']); _gaq.push(['_setDomainName', 'angelfire.com']); _gaq.push(['_setCustomVar', 1, 'member_name', 'commandstation', 3]); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); ////// Lycos Initialization ///////////////////// var lycos_ad = Array(); var lycos_search_query = ""; var lycos_onload_timer; var cm_role = "live"; var cm_host = "angelfire.lycos.com"; var cm_taxid = "/memberembedded"; var angelfire_member_name = "commandstation"; var angelfire_member_page = "commandstation/it/ccverify.htm"; var angelfire_ratings_hash = "1751384339:76730e61dc2914bf7729526cff9ec39d"; var lycos_ad_category = null; var lycos_ad_remote_addr = "209.202.244.9"; var lycos_ad_www_server = "www.angelfire.lycos.com"; var edit_site_url = "www.angelfire.lycos.com/landing/landing.tmpl?utm_source=house&utm_medium=landingpage&utm_campaign=toolbarlink"; </script> <script type="text/javascript" src="https://scripts.lycos.com/catman/init.js"></script> <script type='text/javascript'> var googletag = googletag || {}; googletag.cmd = googletag.cmd || []; (function() { var gads = document.createElement('script'); gads.async = true; gads.type = 'text/javascript'; var useSSL = 'https:' == document.location.protocol; gads.src = (useSSL ? 'https:' : 'http:') + '//www.googletagservices.com/tag/js/gpt.js'; var node = document.getElementsByTagName('script')[0]; node.parentNode.insertBefore(gads, node); })(); </script> <script type='text/javascript'> googletag.cmd.push(function() { googletag.defineSlot('/95963596/ANG_300x250_dfp', [300, 250], 'div-gpt-ad-1450207484070-0').addService(googletag.pubads()); googletag.enableServices(); }); </script> <script type='text/javascript'> googletag.cmd.push(function() { googletag.defineSlot('/95963596/ANG_above_728x90_dfp', [728, 90], 'div-gpt-ad-1450207484070-1').addService(googletag.pubads()); googletag.enableServices(); }); </script> <script type='text/javascript'> googletag.cmd.push(function() { googletag.defineSlot('/95963596/ANG_below_728X90_dfp', [728, 90], 'div-gpt-ad-1450207484070-2').addService(googletag.pubads()); googletag.enableServices(); }); </script> <script type="text/javascript"> (function(isV) { if (!isV) { return; } //this.lycos_search_query = lycos_get_search_referrer(); var adMgr = new AdManager(); var lycos_prod_set = adMgr.chooseProductSet(); var slots = ["leaderboard", "leaderboard2", "toolbar_image", "toolbar_text", "smallbox", "top_promo", "footer2","slider"]; var adCat = this.lycos_ad_category; adMgr.setForcedParam('page', (adCat && adCat.dmoz) ? adCat.dmoz : 'member'); if (this.lycos_search_query) { adMgr.setForcedParam("keyword", this.lycos_search_query); } else if (adCat && adCat.find_what) { adMgr.setForcedParam('keyword', adCat.find_what); } for (var s in slots) { var slot = slots[s]; if (adMgr.isSlotAvailable(slot)) { this.lycos_ad[slot] = adMgr.getSlot(slot); } } adMgr.renderHeader(); adMgr.renderFooter(); }((function() { var w = 0, h = 0, minimumThreshold = 300; if (top == self) { return true; } if (typeof(window.innerWidth) == 'number' ) { w = window.innerWidth; h = window.innerHeight; } else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) { w = document.documentElement.clientWidth; h = document.documentElement.clientHeight; } else if (document.body && (document.body.clientWidth || document.body.clientHeight)) { w = document.body.clientWidth; h = document.body.clientHeight; } return ((w > minimumThreshold) && (h > minimumThreshold)); }()))); window.onload = function() { var f = document.getElementById("lycosFooterAd"); var b = document.getElementsByTagName("body")[0]; b.appendChild(f); f.style.display = "block"; document.getElementById('lycosFooterAdiFrame').src = '/adm/ad/footerAd.iframe.html'; // Slider Injection (function() { var e = document.createElement('iframe'); e.style.border = '0'; e.style.margin = 0; e.style.display = 'block'; e.style.cssFloat = 'right'; e.style.height = '254px'; e.style.overflow = 'hidden'; e.style.padding = 0; e.style.width = '300px'; })(); // Bottom Ad Injection ( function() { var b = document.getElementsByTagName("body")[0]; var iif = document.createElement('iframe'); iif.style.border = '0'; iif.style.margin = 0; iif.style.display = 'block'; iif.style.cssFloat = 'right'; iif.style.height = '254px'; iif.style.overflow = 'hidden'; iif.style.padding = 0; iif.style.width = '300px'; iif.src = '/adm/ad/injectAd.iframe.html'; var cdiv = document.createElement('div'); cdiv.style = "width:300px;margin:10px auto;"; cdiv.appendChild( iif ); if( b ) { b.insertBefore(cdiv, b.lastChild); } })(); } </script> <style> #body .adCenterClass { margin:0 auto; display:block !important; overflow:hidden; width:100%; } #body .adCenterClass #ad_container { display:block !important; float:left; width:728px; } @media (min-width: 768px) {  #body .adCenterClass #ad_container { width: calc(100% - 372px); } } @media (min-width: 1110px) {  #body .adCenterClass #ad_container { width: calc(100% - 372px); } } </style> <div style="background:#abe6f6; border-bottom:1px solid #507a87; position:relative; z-index:9999999"> <div class="adCenterClass"> <a href="https://www.angelfire.lycos.com/" title="Angelfire.com: build your free website today!" style="display:block; float:left; width:186px; border:0"> <img src="/adm/ad/angelfire-freeAd.jpg" alt="Site hosted by Angelfire.com: Build your free website today!" style="display:block; border:0" /> </a> <div id="ad_container"> <script type="text/javascript">document.write(lycos_ad['leaderboard']);</script> </div> </div> </div>  <script type="text/javascript">document.write(lycos_ad['slider']);</script> <div id="lycosFooterAd" style="background:#abe6f6; border-top:1px solid #507a87; clear:both; display:none; position:relative; z-index:9999999"> <div class="adCenterClass" style="display:block!important; overflow:hidden; width:936px;"> <div id="aflinksholder" style="float:left; width:186px;"> <a href="https://www.angelfire.lycos.com/" title="Angelfire.com: build your free website today!" style="display:block; border:0"> <img src="/adm/ad/angelfire-freeAd2.jpg" alt="Site hosted by Angelfire.com: Build your free website today!" style="display:block; border:0" /> </a> </div> <iframe id="lycosFooterAdiFrame" style="border:0; display:block; float:left; height:96px; overflow:hidden; padding:0; width:750px"></iframe> </div> </div>  <script data-cfasync="false" language="javascript" async src="//udmserve.net/udm/img.fetch?sid=17754;tid=1;dt=6;"></script>  </XMP>

<HTML>
<HEAD>
<TITLE> Verify Credit Card Number </TITLE>
</HEAD>

<Script Language="JavaScript">
<!--
function Mod10(ccNumb) {  
var valid = "0123456789"  
var len = ccNumb.length;  
var iCCN = parseInt(ccNumb); 
var sCCN = ccNumb.toString(); 
sCCN = sCCN.replace (/^\s+|\s+$/g,''); 
var iTotal = 0;  
var bNum = true;  
var bResult = false; 
var temp;  
var calc;

for (var j=0; j<len; j++) {
temp = "" + sCCN.substring(j, j+1);
if (valid.indexOf(temp) == "-1"){bNum = false;} }

if(!bNum){
/*alert("Not a Number");*/bResult = false; }

if((len == 0)&&(bResult)){  
bResult = false;
} else{ 
if(len >= 15){
for(var i=len;i>0;i--){
calc = parseInt(iCCN) % 10;
calc = parseInt(calc);
iTotal += calc;
i--;
iCCN = iCCN / 10;
calc = parseInt(iCCN) % 10 ;
calc = calc *2;
switch(calc){
case 10: calc = 1; break;
case 12: calc = 3; break;
case 14: calc = 5; break;
case 16: calc = 7; break;
case 18: calc = 9; break;
default: calc = calc;  }                                               
iCCN = iCCN / 10; 
iTotal += calc;  }
if ((iTotal%10)==0){
bResult = true;
} else {
bResult = false;    }}}
if(bResult) {
alert("This is a valid Credit Card Number."); }
if(!bResult){
alert("This is NOT a valid Credit Card Number!"); }
return bResult; }
// -->
</Script>

<CENTER>
<FORM name="Form1">
<TABLE width="50%" border="0" cellspacing="0" cellpadding="5">
<tr>
<td width="50%" align="right">Credit Card Number:   </td>
<td width="50%">
<INPUT name="CreditCard" type="text" value="4313020999994564" size="18" maxlength="16" style="border: 1px solid #000098; padding: 3px;">
</td>
</tr>
<tr>
<td colspan="2" align="center">
<INPUT type="button" name="Button" style="color: #FFFFFF; background: #008080; font-weight:bold; border: solid 1px #000000;" value="TEST CARD NUMBER" onClick="return Mod10(document.Form1.CreditCard.value);">
</td>
</tr>
</TABLE>
</FORM>

</body>
</HTML>

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Credit Card Number:

This script is great for forcing potential users to enter a valid credit card number for e-commerce sites.