var cf = document.getElementById('contactform');

function checkfield(cf)
	{
		ok=true;
	if(document.getElementById('namec').value=="")
	{
		alert("Please Enter Your Name.")
		document.getElementById('namec').focus()
		ok=false;
	}
	else if(document.getElementById('datec').value == "")
	{
		alert("Please fill the date of your birth.");
		document.getElementById('datec').focus();
		ok=false;
	}
	else if(document.getElementById('monthc').value == "")
	{
		alert("Please fill the month of your birth.");
		document.getElementById('monthc').focus();
		ok=false;
	}
	else if(document.getElementById('yearc').value == "")
	{
		alert("Please fill the year of your birth.");
		document.getElementById('yearc').focus();
		ok=false;
	}
	else if(document.getElementById('emailc').value == "")
	{
		alert("Please enter your Email ID here.");
		document.getElementById('emailc').focus();
		ok=false;
	}
	else if(!isEmailAddr(document.getElementById('emailc').value))
	{
		alert("Please enter your email address in the form: yourname@yourdomain.com");
		document.getElementById('emailc').focus();
		ok=false;
	}
     else if(document.getElementById('phonec').value=="" || isNaN(document.getElementById('phonec').value) || document.getElementById('phonec').value.length<=9 || document.getElementById('phonec').value.length>10)
	{
		alert("Please enter your valid Phone Number.")
		document.getElementById('phonec').focus()
		ok=false;
	}
	else if(document.getElementById('addressc').value=="")
	{
		alert("Please provide your Address.")
		document.getElementById('addressc').focus()
		ok=false;
	}
	else if(document.getElementById('statec').value=="")
	{
		alert("Please enter your state/city.")
		document.getElementById('statec').focus()
		ok=false;
	}
	else if(document.getElementById('pinc').value=="" || isNaN(document.getElementById('pinc').value) || document.getElementById('pinc').value.length<=4 || document.getElementById('pinc').value.length>10)
	{
		alert("Please enter your state/city valid Pin Code.");
		document.getElementById('pinc').focus();
		ok=false;
	}
	else if(document.getElementById('coursec').value=="")
	{
		alert("Please mention your course, you are interested in.")
		document.getElementById('coursec').focus()
		ok=false;
	}
	else if(document.getElementById('blankbox').value!="")
	{
	alert("You are not allowed to fill this form! Call at 9911782350 to talk to counselor.")
		ok=false;
	}
	return ok;
}
function isEmailAddr(email)
{
  var result = false;
  var theStr = new String(email);
  var index = theStr.indexOf("@");
  if (index > 0)
  {
	var pindex = theStr.indexOf(".",index);
	if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}