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計(jì)算文本框允許輸入字符的百分比_計(jì)算轉(zhuǎn)換特效

比較不錯的輸入框輸入字符百分比統(tǒng)計(jì)顯示特效，隨著你文字輸入的多少，百分比會跟著變化，而且還帶有進(jìn)度條，在一些論壇發(fā)帖的時(shí)候我們經(jīng)常會見到這種輸入字符統(tǒng)計(jì)的功能。

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>計(jì)算文本框允許輸入字符的百分比-http:</TITLE>
</HEAD>

.progress{
	width: 1px;
	height: 14px;
	color: white;
	font-size: 12px;
    overflow: hidden;
	background-color: navy;
	padding-left: 5px;
}

</style>

// trim the extra text
	if (charcnt > maxlimit) { 
		field.value = field.value.substring(0, maxlimit);
	}

else { 
	// progress bar percentage
	var percentage = parseInt(100 - (( maxlimit - charcnt) * 100)/maxlimit) ;
	document.getElementById(counter).style.width =  parseInt((fieldWidth*percentage)/100)+"px";
	document.getElementById(counter).innerHTML="已輸: "+percentage+"%"
	// color correction on style from CCFFF -> CC0000
	setcolor(document.getElementById(counter),percentage,"background-color");
	}
}

function setcolor(obj,percentage,prop){
obj.style[prop] = "rgb(80%,"+(100-percentage)+"%,"+(100-percentage)+"%)";
}
</script>
<p>限制：120字節(jié)</P>
<form>
<textarea rows="5" cols="40" name="maxcharfield" id="maxcharfield" 
onKeyDown="textCounter(this,'progressbar1',120)" 
onKeyUp="textCounter(this,'progressbar1',120)" 
onFocus="textCounter(this,'progressbar1',120)" ></textarea><br />
<div id="progressbar1" class="progress"></div>
<script>textCounter(document.getElementById("maxcharfield"),"progressbar1",120)</script>
</form>
</BODY>
</HTML>

所屬頻道：計(jì)算轉(zhuǎn)換特效/更新時(shí)間：2012-05-08

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計(jì)算文本框允許輸入字符的百分比_計(jì)算轉(zhuǎn)換特效

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