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Calculators >>> Ad Calculator.

Selling ad banners has just got easier! Just enter two fields of the three fields of information, such as the total cost, CPM (cost per thousand impressions), and exposures (number of ads shown), and the calculator will solve the last field for you.

Cost:
CPM:
Exposures:

Add the below code to the <body> section of your page:

<script language="javascript" type="text/javascript">
/* Visit http://www.yaldex.com/ for full source code
and get more free JavaScript, CSS and DHTML scripts! */
<!-- Begin
function adCalc(form) {
var ok = 0;
var cost = form.cost.value;
var cpm = form.cpm.value;
var exposures = form.exposures.value;

var complete = "It looks like you entered all the information already!  With this calculator, you just enter two of the fields and it solves for the last one.";

var incomplete = "Oops!  It doesn't appear you entered enough information.  Please enter at least two entries in order to solve for the other two.";

if (cost != "" && cpm != "")       { form.exposures.value = ((cost / cpm) * 1000); ok++; } // solve for exposures
if (cost != "" && exposures != "") { form.cpm.value = ((1000 / exposures) * cost); ok++; } // solve for cpm
if (cpm != "" && exposures != "")  { form.cost.value = cpm / (1000 / exposures);   ok++; } // solve for cost

if (!ok) alert(incomplete);  // they did not enter at least 2 fields
if (cost != "" && cpm != "" && exposures != "") alert(complete); // they filled in all the fields!
}
//  End -->
</script>
<center>
<form method=post>
<table border="1" cellpadding=5>
<tr>
<td
align=center>Cost:</td>
<td
align=center><input type=text name=cost size=8 value="" onFocus="select()"></td>
</tr>
<tr>
<td
align=center>CPM:</td>
<td
align=center><input type=text name=cpm size=8 value="" onFocus="select()"></td>
</tr>
<tr>
<td
align=center>Exposures:</td>
<td
align=center><input type=text name=exposures size=8 value="" onFocus="select()"></td>
</tr>
<tr>
<td
colspan=2 align=center><input type=button value="Solve" onClick="adCalc(this.form)"> <input type=reset value=reset></td>
</tr>
</table>

</form>
</center>

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