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Keyboard Events in JavaScript
- Thread starter ajayg
- Start date
so why dod you want user to enter that zero? set it as a default value..
but anyway, here is an example:
<html><head><title>validating</title>
<script>
function validate(value,flag){
if (value.length!=0){
if (parseFloat(value)!=0){
alert('wrong');
if (flag) return false
}else if (flag) return true
}else if (flag){alert('enter zero'); return false}
}
</script>
</head>
<body>
<form onsubmit="return validate(this.txt1.value,true)">
<input type="text" name="txt1" onblur="validate(this.value,false)">
<input type="submit" name="sub1" value="just do it">
</form>
</body>
</html> Victor
but anyway, here is an example:
<html><head><title>validating</title>
<script>
function validate(value,flag){
if (value.length!=0){
if (parseFloat(value)!=0){
alert('wrong');
if (flag) return false
}else if (flag) return true
}else if (flag){alert('enter zero'); return false}
}
</script>
</head>
<body>
<form onsubmit="return validate(this.txt1.value,true)">
<input type="text" name="txt1" onblur="validate(this.value,false)">
<input type="submit" name="sub1" value="just do it">
</form>
</body>
</html> Victor
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