//========================   start functions for Phone check =======

var digits = "0123456789";
// non-digit characters which are allowed in phone numbers
var phoneNumberDelimiters = "()- ";
// characters which are allowed in international phone numbers
// (a leading + is OK)
var validWorldPhoneChars = phoneNumberDelimiters + "+";
// Minimum no of digits in an international phone no.
var minDigitsInIPhoneNumber = 10;

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 = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function checkInternationalPhone(strPhone){
s=stripCharsInBag(strPhone,validWorldPhoneChars);
return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}


//========================   end functions for Phone check =======
//========================   start functions for Phone check =======

function isValidEmail(email, required) {
    if (required==undefined) {   // if not specified, assume it's required
        required=true;
    }
    if (email==null) {
        if (required) {
            return false;
        }
        return true;
    }
    if (email.length==0) {  
        if (required) {
            return false;
        }
        return true;
    }
    if (! allValidChars(email)) {  // check to make sure all characters are valid
        return false;
    }
    if (email.indexOf("@") < 1) { //  must contain @, and it must not be the first character
        return false;
    } else if (email.lastIndexOf(".") <= email.indexOf("@")) {  // last dot must be after the @
        return false;
    } else if (email.indexOf("@") == email.length) {  // @ must not be the last character
        return false;
    } else if (email.indexOf("..") >=0) { // two periods in a row is not valid
	return false;
    } else if (email.indexOf(".") == email.length) {  // . must not be the last character
	return false;
    }
    return true;
}

function allValidChars(email) {
  var parsed = true;
  var validchars = "abcdefghijklmnopqrstuvwxyz0123456789@.-_";
  for (var i=0; i < email.length; i++) {
    var letter = email.charAt(i).toLowerCase();
    if (validchars.indexOf(letter) != -1)
      continue;
    parsed = false;
    break;
  }
  return parsed;
}
//========================   end functions for email check =======



function check_empty_contact(form1)        //----------- for contact us --------
{
	if(document.form1.name.value=="")
	{
		  alert('Please enter your name');
		  document.form1.name.focus();
		  return false;
	}
	
	if(document.form1.email.value=="")
	   {
		  alert('Please enter email address');
		  document.form1.email.focus();
		  return false;
	   }
	else if(! isValidEmail(document.form1.email.value)) 
	 {
        alert("Please enter a valid email address");
        return false;
    }
	if(document.form1.additional_info.value=='')
	{
	alert('Plz. Enter the detailed description');
	document.form1.additional_info.focus();
	return false;
	}
	
	if(document.form1.comment.value=="")
	{
		  alert('Please enter comment');
		  document.form1.comment.focus();
		  return false;
	}
	if(document.form1.mcspvalue.value=="")
	{
		  alert('Please enter security code');
		  document.form1.mcspvalue.focus();
		  return false;
	}

return true;	
}




function check_empty_logo(form1)			//----------- for logo design order --------
{
	if(document.form1.name.value=="")
	{
		  alert('Please enter your name.');
		  document.form1.name.focus();
		  return false;
	}
	
if(document.form1.email.value=="")
	   {
		  alert('Please enter email address.');
		  document.form1.email.focus();
		  return false;
	   }
	else if(! isValidEmail(document.form1.email.value)) 
	 {
        alert("Please enter a valid email address");
		document.form1.email.focus();
        return false;
    }

var Phone=document.form1.phone;
	
	if (Phone.value!="")
	{
		
	if (checkInternationalPhone(Phone.value)==false){
		alert("Please Enter a Valid Phone Number");
		Phone.value="";
		Phone.focus();
		return false;
		}
	}

	if(document.form1.comment.value=="")
	{
		  alert('Please enter your comment.');
		  document.form1.comment.focus();
		  return false;
	}

	if(document.form1.mcspvalue.value=="")
	{
		  alert('Please enter security code.');
		  document.form1.mcspvalue.focus();
		  return false;
	}
return true;
}


function check_empty(form1)
{
	if(document.form1.company.value=="")
	{
		alert("Please enter company name");
		document.form1.company.focus();
		return false;
	}
	/*if(document.form1.address1.value=="")
	{
		alert("Please enter address");
		document.form1.address1.focus();
		return false;
	}*/
	if(document.form1.city.value=="")
	{
		alert("Please enter city");
		document.form1.city.focus();
		return false;
	}
	
	if(document.form1.state.value=="")
	{
		alert("Please enter state name");
		document.form1.state.focus();
		return false;
	}
	
	if(document.form1.country.value=="")
	{
		alert("Please enter country name");
		document.form1.country.focus();
		return false;
	}
	
	if(document.form1.name.value=="")
	{
		alert("Please enter contact name ");
		document.form1.name.focus();
		return false;
	}
	
	var Phone=document.form1.phone;
	
	if ((Phone.value==null)||(Phone.value=="")){
		alert("Please Enter your Phone Number");
		Phone.focus();
		return false;
	}
	else if (checkInternationalPhone(Phone.value)==false){
		alert("Please Enter a Valid Phone Number");
		Phone.value="";
		Phone.focus();
		return false;
	}
	if(document.form1.email.value=="")
	   {
		  alert('Please enter email address');
		  document.form1.email.focus();
		  return false;
	   }
	else if(! isValidEmail(document.form1.email.value)) 
	 {
        alert("Please enter a valid email address");
		 document.form1.email.focus();
        return false;
    }
	if(document.form1.business_nature.value=="")
	{
		alert("Please describe your company or organization");
		document.form1.business_nature.focus();
		return false;
	}
	if(document.form1.requirement.value=="")
	{
		alert("Please describe your requirements and goals");
		document.form1.requirement.focus();
		return false;
	}
	if(document.form1.day1.value==false)
	{
		alert("Please select start day");
		document.form1.day1.focus();
		return false;
	}
	if(document.form1.month1.value==false)
	{
		alert("Please select start month");
		document.form1.month1.focus();
		return false;
	}
	if(document.form1.year1.value==false)
	{
		alert("Please select start year");
		document.form1.year1.focus();
		return false;
	}

	if(document.form1.day2.value==false)
	{
		alert("Please select end day");
		document.form1.day2.focus();
		return false;
	}
		
	if(document.form1.month2.value==false)
	{
		alert("Please select end month");
		document.form1.month2.focus();
		return false;
	}
	

	if(document.form1.year2.value==false)
	{
		alert("Please select end year");
		document.form1.year2.focus();
		return false;
	}

return true;

}



function check_empty_ecom(form1)
{
	
	if(document.form1.name.value=="")
	{
		  alert('Please enter name');
		  document.form1.name.focus();
		  return false;
	}
	

	if(document.form1.email.value=="")
	   {
		  alert('Please enter email address');
		  document.form1.email.focus();
		  return false;
	   }
	else if(! isValidEmail(document.form1.email.value)) 
	 {
        alert("Please enter a valid email address");
		 document.form1.email.focus();
		return false;
    }
	
	if(document.form1.dev_message.value=="")
	{
		  alert('Please enter message');
		  document.form1.dev_message.focus();
		  return false;
	}
	
	if(document.form1.mcspvalue.value=="")
	{
		  alert('Please enter security code');
		  document.form1.mcspvalue.focus();
		  return false;
	}

return true;	
}

function check_empty2(form1)								//----------- for ecom request --------
{
	if(document.form1.name.value=="")
	{
		  alert('Please enter your name');
		  document.form1.name.focus();
		  return false;
	}
	if(document.form1.email.value=="")
	   {
		  alert('Please enter email address');
		  document.form1.email.focus();
		  return false;
	   }
	else if(! isValidEmail(document.form1.email.value)) 
	 {
        alert("Please enter a valid email address");
		document.form1.email.focus();
        return false;
    }

	if(document.form1.mcspvalue.value=="")
	{
		  alert('Please enter security code');
		  document.form1.mcspvalue.focus();
		  return false;
	}

return true;
}
function check_empty_off(form1)								//----------- for ecom request --------
{
	if(document.form1.name.value=="")
	{
		  alert('Please enter your name');
		  document.form1.name.focus();
		  return false;
	}
	if(document.form1.email.value=="")
	   {
		  alert('Please enter email address');
		  document.form1.email.focus();
		  return false;
	   }
	else if(! isValidEmail(document.form1.email.value)) 
	 {
        alert("Please enter a valid email address");
		document.form1.email.focus();
        return false;
    }

	if(document.form1.additional_info.value=="")
	{
		  alert('Please enter detailed description');
		  document.form1.additional_info.focus();
		  return false;
	}

	if(document.form1.mcspvalue.value=="")
	{
		  alert('Please enter security code');
		  document.form1.mcspvalue.focus();
		  return false;
	}

return true;
}

                                                               /* start request seo proposal*/
function check_empty_request(form1)
{
	if(document.form1.fname.value=="")
	{
		  alert('Please enter your first name');
		  document.form1.fname.focus();
		  return false;
	}
	if(document.form1.lname.value=="")
	{
		  alert('Please enter your last name');
		  document.form1.lname.focus();
		  return false;
	}

	if(document.form1.email.value=="")
	   {
		  alert('Please enter email address');
		  document.form1.email.focus();
		  return false;
	   }
	else if(! isValidEmail(document.form1.email.value)) 
	 {
        alert("Please enter a valid email address");
		document.form1.email.focus();
        return false;
    }

	var Phone=document.form1.phone;
	
	if ((Phone.value!="")){
	
	if (checkInternationalPhone(Phone.value)==false){
		alert("Please Enter a Valid Phone Number");
		Phone.value="";
		Phone.focus();
		return false;
	}
	}

	if(document.form1.url.value=="")
	{
		  alert('Please enter website URL');
		  document.form1.url.focus();
		  return false;
	}

	if(document.form1.comment.value=="")
	{
		  alert('Please enter comment');
		  document.form1.comment.focus();
		  return false;
	}

	if(document.form1.security_code.value=="")
	{
		  alert('Please enter security code');
		  document.form1.security_code.focus();
		  return false;
	}
return true;


}
                                                         /* End request seo proposal*/



										/* start seo-outsourcing*/

function check_empty_seo(form1)
{

if(document.form1.name.value=="")
	{
		  alert('Please enter your name');
		  document.form1.name.focus();
		  return false;
	}
	var Phone=document.form1.phone;
	
	if ((Phone.value!="")){
	
	if (checkInternationalPhone(Phone.value)==false){
		alert("Please Enter a Valid Phone Number");
		Phone.value="";
		Phone.focus();
		return false;
	}
	}
	if(document.form1.email.value=="")
	   {
		  alert('Please enter email address');
		  document.form1.email.focus();
		  return false;
	   }
	else if(! isValidEmail(document.form1.email.value)) 
	 {
        alert("Please enter a valid email address");
		document.form1.email.focus();
        return false;
    }
	if(document.form1.url.value=="")
	{
		  alert('Please enter website URL');
		  document.form1.url.focus();
		  return false;
	}
	if(document.form1.comment.value=="")
	{
		  alert('Please enter comment');
		  document.form1.comment.focus();
		  return false;
	}

	if(document.form1.security_code.value=="")
	{
		  alert('Please enter security code');
		  document.form1.security_code.focus();
		  return false;
	}
return true;

}
															/* end seo-outsourcing*/