// JavaScript Document



function trim(s)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not a whitespace, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (c != " ") returnString += c;
    }
    return returnString;
}

function fnSubmit()
{
	if (trim(document.school.fname.value)=="")
	{
	  alert("Please enter your First Name");
	  //document.frmcontact.name.style.backgroundColor="#fffdc8";
	  document.school.fname.focus()
	  return false;
	}
	
		if (trim(document.school.lname.value)=="")
	{
	  alert("Please enter your Last Name");
	  //document.frmcontact.name.style.backgroundColor="#fffdc8";
	  document.school.lname.focus()
	  return false;
	}

	if (trim(document.school.adr.value)=="")
	{
	  alert("Please enter your Addres");
	  //document.frmcontact.name.style.backgroundColor="#fffdc8";
	  document.school.adr.focus()
	  return false;
	}
	if (trim(document.school.city.value)=="")
	{
	  alert("Please enter your City");
	  //document.frmcontact.name.style.backgroundColor="#fffdc8";
	  document.school.city.focus()
	  return false;
	}
	if (trim(document.school.zip.value)=="")
	{
	  alert("Please enter your Zip");
	  //document.frmcontact.name.style.backgroundColor="#fffdc8";
	  document.school.zip.focus()
	  return false;
	}
	
	if (trim(document.school.country.value)=="")
	{
	  alert("Please enter your Country");
	  //document.frmcontact.name.style.backgroundColor="#fffdc8";
	  document.school.country.focus()
	  return false;
	}
	
	if (trim(document.school.email.value)=="")
	{
	  alert("Please enter the E-mail address");
	  //document.frmcontact.email.style.backgroundColor="#fffdc8";
	  document.school.email.focus()
	  return false;
	}
	else if (EmailCheck(trim(document.school.email.value))=="")
	{
	  //document.frmcontact.email.style.backgroundColor="#fffdc8";
	  document.school.email.focus()
	  return false;
	}
    if (trim(document.school.phone.value)=="")
	 {
	  alert("Please enter your Phone Number");
	  //document.frmcontact.name.style.backgroundColor="#fffdc8";
	  document.school.phone.focus()
	  return false;
	 }
	
    if(isNaN(document.school.phone.value))
   {
	 alert("Please enter correct Phone Number");
	 document.school.phone.focus()
	   return false;
 }
		
		  
			
	   document.school.submit();
}

	
function EmailCheck (emailStr) 
{

	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)
	
	if (matchArray==null) 
	{
  		alert("Email address seems incorrect (check @ and .'s)")
		return false
	}
	var user=matchArray[1]
	var domain=matchArray[2]

	if (user.match(userPat)==null) 
	{
    alert("The username doesn't seem to be valid.")
    return false
	}
	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) 
	{
    // this is an IP address
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
	        alert("Destination IP address is invalid!")
		return false
	    }
    	}
    	return true
	}

// Domain is symbolic name
	var domainArray=domain.match(domainPat)
	if (domainArray==null) 
	{
		alert("The domain name doesn't seem to be valid.")
    	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) 
	{
   // the address must end in a two letter or three letter word.
   alert("The address must end in a three-letter domain, or two letter country.")
   return false
	}

// Make sure there's a host name preceding the domain.
	if (len<2) 
	{
   var errStr="This address is missing a hostname!"
   alert(errStr)
   return false
	}

	// If we've gotten this far, everything's valid!
	return true;
}