// JavaScript Document
function validate()
	{
     frm=document.enquiry;
	     if(trim(frm.name.value)=="")
	 {
	   alert("Please enter name.")
	   frm.name.value="";
	   frm.name.focus();
	   return false;
     } 
	
	 if(trim(frm.name.value)!="")
	 {
	   if(!checkname(frm.name.value))
	   {
	   alert("Please enter valid name.")
	   frm.name.value="";
	   frm.name.focus();
	   return false;
	   }
	 } 
	 
 
	  if(trim(frm.jobdescription.value)=="")
	 {
	   alert("Please select jobdescription.")
	   frm.jobdescription.value="";
	   frm.jobdescription.focus();
	   return false;
	 }
	 
		 if(trim(frm.add.value)=="")
	 {
	   alert("Please enter address.")
	   frm.add.value="";
	   frm.add.focus();
	   return false;
	 }
	 
	 		 if(trim(frm.areacode.value)=="")
	 {
	   alert("Please enter area code.")
	   frm.areacode.value="";
	   frm.areacode.focus();
	   return false;
	 }

	 	  if(trim(frm.email.value)=="")
	 {
	   alert("Please enter email address.")
	   frm.email.value="";
	   frm.email.focus();
	   return false;
	 }
	  if(trim(frm.email.value)!="")
	  {
	 if(isEmail(trim(frm.email.value))==false)
	   {
	   alert("Please enter valid email address.")
	   frm.email.value="";
	   frm.email.focus();
	   return false;
	 } 
	 }
	 
	 frm.action="enquiry.php"
	frm.submit();
  }
  
  function trim(inputString) 
{
   if (typeof inputString != "string") { return inputString; }
   var retValue = inputString;
   var ch = retValue.substring(0, 1);
   
   while (ch == " ") { 
      retValue = retValue.substring(1, retValue.length);
      ch = retValue.substring(0, 1);
   }
   
   ch = retValue.substring(retValue.length-1, retValue.length);
   while (ch == " ") { 
      retValue = retValue.substring(0, retValue.length-1);
      ch = retValue.substring(retValue.length-1, retValue.length);
   }
   while (retValue.indexOf("  ") != -1) { 
      retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); 
   }
   return retValue;
}

function checkname(sText)
{
    var ValidChars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ ";
    var IsNumber=true;
    var Char;
	if(sText.length==0)	
	{
	  return false;
	}
	else
	{
    for (i = 0; i < sText.length && IsNumber == true; i++) 
    { 
        Char = sText.charAt(i); 
        if (ValidChars.indexOf(Char) == -1) 
        {

            IsNumber = false;
        }
    }  
    return IsNumber;
   }	
}

function checkcity(sText)
{
    var ValidChars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ- 1234567890";
    var IsNumber=true;
    var Char;
	if(sText.length==0)	
	{
	  return false;
	}
	else
	{
    for (i = 0; i < sText.length && IsNumber == true; i++) 
    { 
        Char = sText.charAt(i); 
        if (ValidChars.indexOf(Char) == -1) 
        {
            IsNumber = false;
        }
    }  
    return IsNumber;
   }	
}

function isEmail (emailIn){
	var isEmailOk = false;
	var filter = /^[a-zA-Z0-9][a-zA-Z0-9._-]*\@[a-zA-Z0-9-]+(\.[a-zA-Z][a-zA-Z-]+)+$/
	if(emailIn.search(filter) != -1)
		{
			isEmailOk = true;
		/*	var arr = emailIn.split(".");
			if(arr[1]!="edu")
		    isEmailOk = false;*/
		}
	if(emailIn.indexOf("..") != -1)
		isEmailOk = false;
	if(emailIn.indexOf(".@") != -1)
		isEmailOk = false;
	return isEmailOk;
}

	function isValid(who) {
		var invalidChars=new Array("~","!","@","#","$","%","^","&","*","(",")","+","=","[","]",":",";",",","\"","'","|","{","}","\\","/","<",">","?");
		var testArr=who.split("");
		for(var i=0; i<testArr.length; i++) {
			for(var j=0; j<invalidChars.length; j++) {
				if(testArr[i]==invalidChars[j]) {
					return false;
				}
			}
		}
		return true;
	}
	
	function checkoption(sText)
{
    var ValidChars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-";
    var IsNumber=true;
    var Char;
	if(sText.length==0)	
	{
	  return false;
	}
	else
	{
    for (i = 0; i < sText.length && IsNumber == true; i++) 
    { 
        Char = sText.charAt(i); 
        if (ValidChars.indexOf(Char) == -1) 
        {
            IsNumber = false;
        }
    }  
    return IsNumber;
   }	
}
	function isfl(who) {
		var invalidChars=new Array("-","_",".");
		var testArr=who.split("");
		which=0;
		for(var i=0; i<2; i++) {
			for(var j=0; j<invalidChars.length; j++) {
				if(testArr[which]==invalidChars[j]) {
					return false;
				}
			}
			which=testArr.length-1;
		}
		return true;
	}

	function isDomain(who) {
		var invalidChars=new Array("-","_",".");
		var testArr=who.split("");
		if(testArr.length<2||testArr.length>4) {
			return false;
		}
		for(var i=0; i<testArr.length; i++) {
			for(var j=0; j<invalidChars.length; j++) {
				if(testArr[i]==invalidChars[j]) {
					return false;
				}
			}
		}
		return true;
	}
function checkPhone(strPhone)
{
	var digits = "0123456789+-()/";
	var phoneNumberDelimiters = "-";
	var phoneNumberDelimiters1 = "+";
	var validPhoneChars = phoneNumberDelimiters;
	var validPhoneChars1 = phoneNumberDelimiters1;
	s=stripCharsInBag(strPhone,validPhoneChars);
	s=stripCharsInBag(s,validPhoneChars1);
	//return (isInteger(s));
	return inValidCharSet(strPhone,digits)
}
function stripCharsInBag(s, bag)
{
    var i;
    var returnString = "";
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function inValidCharSet(str,charset){
	var result = true;
	for (var i=0;i<str.length;i++)
		if (charset.indexOf(str.substr(i,1))<0){
			result = false;
			break;
		}
	return result;
}

function isInteger(s)
{
    var i;
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
     // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag)
{
    var i;
    var returnString = "";
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}