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//phone number validation start
var digits = “0123456789″;
var phoneNumberDelimiters = “()- “;
var validWorldPhoneChars = phoneNumberDelimiters + “+”;
var minDigitsInIPhoneNumber = 10;

function isInteger(s)
{   var i;
for (i = 0; i < s.length; i++)
{
// Check that current character is number.
var c = s.charAt(i);
if (((c < “0″) || (c > “9″))) return false;
}
// All characters are numbers.
return true;
}

function stripCharsInBag(s, bag)
{   var i;
var returnString = “”;
for (i = 0; i < s.length; i++)
{
var c = s.charAt(i);
if (bag.indexOf(c) == -1) returnString += c;
}
return returnString;
}

function checkInternationalPhone(strPhone){
s=stripCharsInBag(strPhone,validWorldPhoneChars);
return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}

function Validatephone(Phone){

if (!checkInternationalPhone(Phone)){
alert(“Please Enter a Valid Phone Number”);
return false;
}
return true;
}

// phone validation ends

<script type=”text/javascript”>
function validateFileExtension(ld) {
if(!/(\.bmp|\.gif|\.jpg|\.jpeg)$/i.test(ld.value)) {
alert(“Invalid image file type.”);
ld.form.reset();
ld.focus();
return false;
}
return true;
}
</script>

<script language=”javascript” type=”text/javascript”>
function checkemail(id) {
var email = document.getElementById(id);
var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
if (!filter.test(email.value)) {
alert(‘Please provide a valid email address’);
email.focus;
return false;
}
return true;
}
</script>

<script language=”javascript” type=”text/javascript”>
function isValidName(id)
{   Element=document.getElementById(id);
if (Element.value==”"||Element.value== 0)
{
alert(“Please Enter your Name.”);
Element.focus();
Element.value=”";
return false;
}
var rg = new RegExp(/^[A-Za-z\s'.]+$/gi);
name=Element.value;
if(String(rg.test(name))==’false’)
{
Element.focus();
Element.value=”";
alert(“Please Enter A valid Name”);
return false;
}
}
</script>