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vinay kumar reddy
Create a set of checkboxes with the below text: Which company do you work in? Infosys TCS Wipro Microsoft Google None of these If ââ?¬Å?None of theseââ?¬Â? is selected with any other, show a error message ââ?¬Å?Invalid selectionââ?¬Â?.
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February 25, 2011 at 1:35 PM
JavaScript Check box Validation
<html>
<script>
Array.prototype.contains = function (element) {
for (var i = 0; i < this.length; i++) {
if (this[i] == element) {
return true;
}
}
return false;
}
function validate(){
var array = new Array();
var total=""
for(var i=0; i < document.f.company.length; i++){
if(document.f.company[i].checked)
array[i]=document.f.company[i].value;
}
if(array.contains("None of these")&&array.length>1){
alert("Invalid Selection");
}
return false;
}
</script>
<form name="f">
Which company do you work in?<br>
<input type="checkbox" name="company" value="Infosys">Infosys<br>
<input type="checkbox" name="company" value="TCS">TCS<br>
<input type="checkbox" name="company" value="Wipro">Wipro<br>
<input type="checkbox" name="company" value="Microsoft">Microsoft<br>
<input type="checkbox" name="company" value="Google">Google<br>
<input type="checkbox" name="company" value="None of these">None of these<br>
<input type="button" value="Check" onclick="validate();">
</form>
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