function doSignup()
{
 if (validate())
 {
	if (document.frmSIGNUP.hidAction.value == "NEW")
	   document.frmSIGNUP.hidAction.value = "add";


	if (document.frmSIGNUP.hidAction.value == "OLD")
	   document.frmSIGNUP.hidAction.value = "update";

   document.frmSIGNUP.submit();    
 }

}

function validate()
{
	var err = 0;
	var msg = "Please enter mendotary data field\n";
	
	if (document.frmSIGNUP.blood.value == "")
	{
		err = 1;
		msg += "Select your Blood Group\n";
	}
		
	if (document.frmSIGNUP.f_name.value == "") 
	{
		err = 1;
		msg += "Enter your name\n";
	}

	if (document.frmSIGNUP.b_date.value == "")
	{
		err = 1;
		msg += "Enter your age\n";
	}

	if (document.frmSIGNUP.weight.value == "")
	{
		err = 1;
		msg += "Enter your weight\n";
	}

	if (document.frmSIGNUP.sex.value == "")
	{
		err = 1;
		msg += "Select your sex\n";
	}

	if (document.frmSIGNUP.selctcd.value == "")
	{
		err = 1;
		msg += "Select your city\n";
	}

	if (document.frmSIGNUP.area.value == "")
	{
		err = 1;
		msg += "Select your area\n";
	}

	if (document.frmSIGNUP.add1.value == "" && 
			document.frmSIGNUP.h_phone.value == "" &&
			document.frmSIGNUP.o_phone.value == "" &&
			document.frmSIGNUP.m_phone.value == "" &&
			document.frmSIGNUP.fax.value     == "" &&
			document.frmSIGNUP.email.value   == "")
	{
		err = 1;
		msg += "Enter atleast one contact address/number\n";
	}
	
	if (document.frmSIGNUP.view_1.checked == false && document.frmSIGNUP.view_0.checked == false)
	{
		err = 1;
		msg += "Select privacy step\n";
	}
	
	if (!err) return true;
	
	alert(msg);
	return false;

}

function allowPhone()
{
 	if ((event.keyCode >= 48 && event.keyCode <= 57) ||event.keyCode ==45)return; 

	event.keyCode=0;
    return false;

}

function allowName()
{
 	if ( (event.keyCode >= 97 && event.keyCode <= 122) ||
		(event.keyCode >= 65 && event.keyCode <= 90) ||
		event.keyCode == 32)return; 

	event.keyCode=0;
    return false;
}



function allowDate()
{
 	if ( (event.keyCode >= 48 && event.keyCode <= 57) ||
		(event.keyCode == 45 ))return; 

	event.keyCode=0;
    return false;
}


function checkLength(obj, value)
{
var str =obj.value;
if (str.length == 0) return;
 
if (str.length < 4)
{
 alert(value + " can't be less than 4 chars");
 obj.focus();
}
}

function allowInteger()
{
 	if (event.keyCode >= 48 && event.keyCode <= 57)return; 

	event.keyCode=0;
    return false;
}




// Check whether string s is empty.

function isEmpty(s)
{   return ((s == null) || (s.length == 0))
}

// whitespace characters
var whitespace = " \t\n\r";


// Returns true if string s is empty or
// whitespace characters only.

function isWhitespace (s)

{   var i;

    // Is s empty?
    if (isEmpty(s)) return true;

    // Search through string's characters one by one
    // until we find a non-whitespace character.
    // When we do, return false; if we don't, return true.

    for (i = 0; i < s.length; i++)
    {
        // Check that current character isn't whitespace.
        var c = s.charAt(i);

        if (whitespace.indexOf(c) == -1) return false;
    }

    // All characters are whitespace.
    return true;
}


function manage_bg(obj)
{
if(obj.name !="a_plus")document.frmSIGNUP.a_plus.checked = false;
if(obj.name !="b_plus")document.frmSIGNUP.b_plus.checked = false;
if(obj.name !="ab_plus")document.frmSIGNUP.ab_plus.checked = false;
if(obj.name !="o_plus")document.frmSIGNUP.o_plus.checked = false;
if(obj.name !="a_minus")document.frmSIGNUP.a_minus.checked = false;
if(obj.name !="b_minus")document.frmSIGNUP.b_minus.checked = false;
if(obj.name !="ab_minus")document.frmSIGNUP.ab_minus.checked = false;
if(obj.name !="o_minus")document.frmSIGNUP.o_minus.checked = false;
document.frmSIGNUP.blood.value = obj.value;
}
function manage_sex(obj)
{
if(obj.name !="sex_m")document.frmSIGNUP.sex_m.checked = false;
if(obj.name !="sex_f")document.frmSIGNUP.sex_f.checked = false;
document.frmSIGNUP.sex.value = obj.value;
}

function manage_view(obj)
{
if(obj.name !="view_1")document.frmSIGNUP.view_1.checked = false;
if(obj.name !="view_0")document.frmSIGNUP.view_0.checked = false;
document.frmSIGNUP.view.value = obj.value;
}




/***********************************************************************************************************************
Email Validation START
***********************************************************************************************************************/

// Email Validation
function emailCheck (emailStr) {
if(!emailStr) return true;
/* The following pattern is used to check if the entered e-mail address
   fits the user@domain format.  It also is used to separate the username
   from the domain. */
var emailPat=/^(.+)@(.+)$/
/* The following string represents the pattern for matching all special
   characters.  We don't want to allow special characters in the address. 
   These characters include ( ) < > @ , ; : \ " . [ ]    */
var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
/* The following string represents the range of characters allowed in a 
   username or domainname.  It really states which chars aren't allowed. */
var validChars="\[^\\s" + specialChars + "\]"
/* The following pattern applies if the "user" is a quoted string (in
   which case, there are no rules about which characters are allowed
   and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
   is a legal e-mail address. */
var quotedUser="(\"[^\"]*\")"
/* The following pattern applies for domains that are IP addresses,
   rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
   e-mail address. NOTE: The square brackets are required. */
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
/* The following string represents an atom (basically a series of
   non-special characters.) */
var atom=validChars + '+'
/* The following string represents one word in the typical username.
   For example, in john.doe@somewhere.com, john and doe are words.
   Basically, a word is either an atom or quoted string. */
var word="(" + atom + "|" + quotedUser + ")"
// The following pattern describes the structure of the user
var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
/* The following pattern describes the structure of a normal symbolic
   domain, as opposed to ipDomainPat, shown above. */
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")


/* Finally, let's start trying to figure out if the supplied address is
   valid. */

/* Begin with the coarse pattern to simply break up user@domain into
   different pieces that are easy to analyze. */
var matchArray=emailStr.match(emailPat)
if (matchArray==null) {
  /* Too many/few @'s or something; basically, this address doesn't
     even fit the general mould of a valid e-mail address. */
	alert("Email address seems incorrect (check @ and .'s)")
	return false
}
var user=matchArray[1]
var domain=matchArray[2]

// See if "user" is valid 
if (user.match(userPat)==null) {
    // user is not valid
    alert("The username doesn't seem to be valid.")
    return false
}

/* if the e-mail address is at an IP address (as opposed to a symbolic
   host name) make sure the IP address is valid. */
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
}

/* domain name seems valid, but now make sure that it ends in a
   three-letter word (like com, edu, gov) or a two-letter word,
   representing country (uk, nl), and that there's a hostname preceding 
   the domain or country. */

/* Now we need to break up the domain to get a count of how many atoms
   it consists of. */
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;
}

/***********************************************************************************************************************
Email Validation END
***********************************************************************************************************************/