Max lines need a popup box

[downah]

Hi guys I have this script here, which counts the characters and lines, now currently though it still allows lines and characters to go into minus, but I would like it to also put up a warning box so it stops the user from being able to put in more text, could you help me out?

 

javascript:

 

function textCounter(theField,theCharCounter,theLineCounter,maxChars,maxLines,maxPerLine)

{

var strTemp = "";

var strLineCounter = 0;

var strCharCounter = 0;



for (var i = 0; i < theField.value.length; i++)

{

	var strChar = theField.value.substring(i, i + 1);



	if (strChar == '\n')

	{

		strTemp += strChar;

		strCharCounter = 1;

		strLineCounter += 1;

	}

	else if (strCharCounter == maxPerLine)

	{

		strTemp += '\n' + strChar;

		strCharCounter = 1;

		strLineCounter += 1;

	}

	else

	{

		strTemp += strChar;

		strCharCounter ++;

	}

}



theCharCounter.value = maxChars - strTemp.length;

theLineCounter.value = maxLines - strLineCounter;

}

 

and used in code:

<textarea name="comment" cols="50" rows="10" wrap="VIRTUAL" onKeyUp="textCounter(theForm.comment,theForm.remChars,remLines,900,30,50);"></textarea>

<br><input name=remChars type=text value="900" size=3 maxlength=3 readonly> characters left

<br><input name=remLines type=text value="30" size=3 maxlength=3 readonly> lines left<br>