内容简介(smalltext)加输入字数统计

方法1、统计输入字符数

smalltext添加一个js来提示及统计已输入的字数

把以下smalltext字段的输入的html表单

<textarea name="smalltext" cols="80" rows="10" id="smalltext"><?=$ecmsfirstpost==1?"":ehtmlspecialchars(stripSlashes($r[smalltext]))?></textarea>

替换为

<script language="javascript">
function countChar(textareaNamezzjs,spanName){
document.getElementById(spanName).innerHTML=document.getElementById(textareaNamezzjs).value.length;
}
</script>

经输入0字

<span id="counter" "color:#ff0000">0</span>字<br>
<textarea id="smalltext" name="smalltext" cols="80" rows="10" onkeydown="countChar('smalltext','counter');" onkeyup="countChar('smalltext','counter');"><?=$ecmsfirstpost==1?"":ehtmlspecialchars(stripSlashes($r[smalltext]))?></textarea>

---------------------------------------------------------------------------------------------------------

方法2、统计输入字符数并限制数量

把以下smalltext字段的输入的html表单

<textarea name="smalltext" cols="80" rows="10" id="smalltext"><?=$ecmsfirstpost==1?"":ehtmlspecialchars(stripSlashes($r[smalltext]))?></textarea>

替换为

<SCRIPT LANGUAGE="JavaScript">  
   <!--//     
function textCounter(field, countfield, maxlimit)
{
if (field.value.length > maxlimit) 
field.value = field.value.substring(0, maxlimit);
else
countfield.value = maxlimit - field.value.length;
}
   //-->  

   </SCRIPT>  

<textarea name="smalltext" cols="80" rows="10" id="smalltext" onMouseOver="textCounter(this.form.smalltext,this.form.remLen,160);" 

onKeyUp="textCounter(this.form.smalltext,this.form.remLen,160);"><?=$ecmsfirstpost==1?"":ehtmlspecialchars(stripSlashes($r[smalltext]))?></textarea>

<FONT color=#999999>还能输入<input readonly "TEXT-ALIGN:center;height:18px;" type=text name=remLen size=2 maxlength=2 value="160">字。