<FORM method=post action=LargePost.asp name=theForm onsubmit="BreakItUp()">
<Textarea rows=3 cols=100 name=BigTextArea>A bunch of text...</Textarea>
<input type=submit value=go>
</form>
<SCRIPT Language=JavaScript>
function BreakItUp()
{
//Set the limit for field size.
//如果内容有中文的字符的话,可以设置为:51100
var FormLimit = 102399
//Get the value of the large input object.
var TempVar = new String
TempVar = document.theForm.BigTextArea.value
//If the length of the object is greater than the limit, break it
//into multiple objects.
if (TempVar.length > FormLimit)
{
document.theForm.BigTextArea.value = TempVar.substr(0, FormLimit)
TempVar = TempVar.substr(FormLimit)
while (TempVar.length > 0)
{
var objTEXTAREA = document.createElement("TEXTAREA")
objTEXTAREA.name = "BigTextArea"
objTEXTAREA.value = TempVar.substr(0, FormLimit)
document.theForm.appendChild(objTEXTAREA)