function validateInput(form) {
if (form1.name.value=="") {
    alert("Please enter your Name");
    form1.name.focus();
	return false;
}

if (form1.name.value.indexOf('@')!=-1) {
    alert("Email addresses are not permitted in Name field.");
    form1.name.value="";
    form1.name.focus();
	return false;
}

if (form1.company.value=="") {
    alert("Please enter your Company");
    form1.company.focus();
	return false;
}

if (form1.company.value.indexOf('@')!=-1) {
    alert("Email addresses are not permitted in Company field.");
    form1.company.value="";
    form1.company.focus();
	return false;
}

if (form1.street.value.indexOf('@')!=-1) {
    alert("Email addresses are not permitted in Street field.");
    form1.street.value="";
    form1.street.focus();
	return false;
}

if (form1.city.value.indexOf('@')!=-1) {
    alert("Email addresses are not permitted in City field.");
    form1.city.value="";
    form1.city.focus();
	return false;
}

var emailStr=form1.email.value
var emailPat=/^(.+)@(.+)$/
var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
var validChars="\[^\\s" + specialChars + "\]"
var quotedUser="(\"[^\"]*\")"
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
var atom=validChars + '+'
var word="(" + atom + "|" + quotedUser + ")"
var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
var matchArray=emailStr.match(emailPat)
var errStr2="Please enter your valid Email address."
    
if (matchArray==null) {
    alert(errStr2);
    form1.email.value="";
    form1.email.focus();
	return false
}
var user=matchArray[1]
var domain=matchArray[2]

if (user.match(userPat)==null) {
    alert(errStr2);
    form1.email.value="";
    form1.email.focus();
    return false
}

var IPArray=domain.match(ipDomainPat)
if (IPArray!=null) {
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
        alert(errStr2);
        form1.email.value="";
        form1.email.focus();
		return false
	    }
    }
    return true
}

var domainArray=domain.match(domainPat)
if (domainArray==null) {
    alert(errStr2);
    form1.email.value="";
    form1.email.focus();
    return false
}

var atomPat=new RegExp(atom,"g")
var domArr=domain.match(atomPat)
var len=domArr.length
if (domArr[domArr.length-1].length<2 || 
    domArr[domArr.length-1].length>3) {
    alert(errStr2);
    form1.email.value="";
    form1.email.focus();
    return false
}

if (len<2) {
    alert(errStr2);
    form1.email.value="";
    form1.email.focus();
	return false
}

if (form1.message.value.length>1400) {
    alert("Your message should be 200 words (1400 characters) or less.");
    form1.message.focus();
	return false
}

if (form1.message.value=="") {
    alert("Please enter your message");
    form1.message.focus();
	return false
}
return true;
}