OnChange is only called when field looses focus. If you want to watch the text as it is type into the field, use onKeyDown / onKeyUp.
Also, look for a regx script that will validate the number style you are expecting. If the regx can't match the number, then fire your alert.
The validate function expects two arguments, which cannot be passed to it.
Instead of using string.concat (string), use string = string + string; It us much cleaner.
Instead of using document.write, create a div, id="txtDebug" and use
document.getElementById("txtDebug")These are some suggestions that I can see of the top of my head that will clean up your code.
Good luck.
On 4/8/2014 11:10 AM, Paul wrote:
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<body>
<form action="" method="post" id="subscribeForm" >Phone number:<input name="number" type="text" /><select onchange="validate(number)" id="carrier"><option id="verizon"value="@vtext.com">verizon</option><option id="att" value="@txt.att.net">att</option></select>
<input type="submit" onclick="formsendscript.php" /></form></body></html>
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