// JavaScript to check contact form
function trim(s)
{
  return s.replace(/^\s+|\s+$/, '');
}
function validateEmail(fld) {
    var error="";
    var tfld = trim(fld.value);                        // value of field with whitespace trimmed off
    var emailFilter = /^[^@]+@[^@.]+\.[^@]*\w\w$/ ;
    var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/ ;

    if (fld.value == "") {
        fld.style.background = 'Yellow';
        error = "Enter Your Email"+"\n";
    } else if (!emailFilter.test(tfld)) {              //test email for illegal characters
        fld.style.background = 'Yellow';
        error = "Enter Valid Email Please !"+"\n";
    } else if (fld.value.match(illegalChars)) {
        fld.style.background = 'Yellow';
        error = "Your Email not Valid"+"\n";
    } else {
        fld.style.background = 'White';
    }
    return error;
}

function checkForm()
{
	var msg='';
	var msgEmail;
	if(document.contact.cn.value=='')
	{
		document.contact.cn.style.background = 'Yellow';
		msg+='Please Enter Company Name !\n';
	}
	if(document.contact.add.value=='')
	{
		document.contact.add.style.background = 'Yellow';
		msg+='Please Enter Your Address !\n';
	}
	if(document.contact.city.value=='')
	{
		document.contact.city.style.background = 'Yellow';
		msg+='Please Enter Your City !\n';
	}
	msgEmail = validateEmail(document.contact.email);
	if(msgEmail != "")msg+=msgEmail+"\n";
	
	if(msg != ''){alert(msg); return false;}
}