js display text box prompt method
- 2020-06-07 03:58:54
- OfStack
This article illustrates how js displays text box prompts. Share to everybody for everybody reference. Specific implementation methods are as follows:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>js Prompt words </title>
<style type="text/css">
input{
width:200px; height:24px;
line-height:24px; border:1px solid #999;
background:#ccc; margin:15px 0 0 100px;
padding:4px; color:#666;
}
.current{
background:#E0FEE4;
border:1px solid #093;
}
</style>
</head>
<body>
<input name="" type="text" value=" Please enter your name: "/><br />
<input name="" type="text" value=" Please enter a nickname: "/><br />
<input name="" type="text" value=" Enter verification code: "/><br />
<input name="" type="text" value=" Please enter your mobile phone number: "/><br />
<input name="" type="text" value=" Please enter email: "/>
<script type="text/javascript">
var aInp=document.getElementsByTagName('input');
var i=0;
var sArray=[];
for(i=0; i<aInp.length; i++)
{
aInp[i].index=i;
sArray.push(aInp[i].value);
aInp[i].onfocus=function()
{
if(sArray[this.index]==aInp[this.index].value)
{
aInp[this.index].value='';
}
aInp[this.index].className='current';
};
aInp[i].onblur=function()
{
if(aInp[this.index].value=='')
{
aInp[this.index].value=sArray[this.index];
}
aInp[this.index].className='';
};
}
</script>
</body>
</html>Hopefully, this article has been helpful in your javascript programming.