function validate(field) {
var valid = "0123456789"
var ok = "yes";
var temp;
for (var i=0; i<field.value.length; i++) {
temp = "" + field.value.substring(i, i+1);
if (valid.indexOf(temp) == "-1") ok = "no";
}
if (ok == "no") {
alert("Invalid entry! Only numbers are accepted!");
field.value="";
field.focus();
   }
}

	function SendAppli()
	{	

  	   if ((document.contactform.email.value.indexOf('@', 0) == -1) || (document.contactform.email.value.indexOf('.', 0) == -1 ))
		{
	        	alert('Please enter a valid email address.');
		        document.contactform.email.focus();
		        return false;
	    }

		if(document.contactform.first_name.value=="")
			{
				alert("Please enter your first name.");
				document.contactform.first_name.focus();
				return false;
			}
      	else if(document.contactform.last_name.value=="")
			{
				alert("Please enter your last name.");
				document.contactform.last_name.focus();
				return false;
			}
		else if(document.contactform.Country.selectedIndex==0)
			{
				alert("Please select your country.");
				document.contactform.Country.focus();
				return false;
			} 
      	else if(document.contactform.DayPhone.value=="")
			{
				alert("Please enter your phone number.");
				document.contactform.DayPhone.focus();
				return false;
			}

		document.contactform.action="sendmail.asp"
		document.contactform.method="post"
		document.contactform.submit()
	}