<script language="JavaScript">
function Talning(msgText,maxChar)
{
lengd = document.form1.txtSkilabod.value.length;
if (lengd > maxChar )
{
document.form1.txtSkilabod.value = document.form1.txtSkilabod.value.substr(0,maxChar);
lengdLeft = 0;
}
else
{
lengdLeft = maxChar - lengd;
}
//document.form1.txtFjoldiStafa.value = lengd;
document.form1.txtFjoldiOnatadraStafa.value = lengdLeft;
}
function send(){
  document.form1.submit();
}
function reset(){
  document.form1.reset();
}
</script>
<form name="form1" method="post" action="http://www.vit.is/spsms/servlet/com.trackwell.vas.spsms.Sender">
Símanúmer:<br />
<input type="text" name="txtSimanumer" value="" size="7" maxlength="7" class="textfields"><br />
Skilaboð:<br /><textarea name="txtSkilabod" wrap="VIRTUAL" cols="20" rows="8" class="textfields" onChange="Talning(this,100)" onFocus="Talning(this,100)" onBlur="Talning(this,100)" onKeyDown="Talning(this,100)" onKeyUp="Talning(this,100)"></textarea><br />
Ónotuð stafabil: <input readonly name="txtFjoldiOnatadraStafa" size="3" maxlength="3" class="textfieldsbold" value="100"><br />
<input class="ff_btn" onClick="send()" name="Send" type="button" class="submitbutton" id="Send" value="Senda"><br />
<input class="ff_btn" onClick="reset()" name="slet" type="button" class="submitbutton" id="slet" value="Hreinsa"><br />
<input type="hidden" value="3609" name="extra">
</form>