/*

List of functions

			

	> ValidInteger

		Purpose: Onkey press accept only 0123456789



	> ValidPhone

		Purpose: Onkey press accept only 1234567890-()+



	> phonenumber

		Purpose: At the time of submit Check for all this characters: 1234567890-()+



*/



function Trim(s) 

{

  // Remove leading spaces and carriage returns

  while ((s.substring(0,1) == ' ') || (s.substring(0,1) == '\n') || (s.substring(0,1) == '\r'))

  {

    s = s.substring(1,s.length);

  }

  // Remove trailing spaces and carriage returns

  while ((s.substring(s.length-1,s.length) == ' ') || (s.substring(s.length-1,s.length) == '\n') || (s.substring(s.length-1,s.length) == '\r'))

  {

    s = s.substring(0,s.length-1);

  }

  return s;

}



function ValidInteger() // on keypress allow only 1234567890

{

	val = event.keyCode;

	if(val<48 || val>57)

	  event.keyCode=0;

	return true;

}





function ValidPhone() // on keypress allow only 1234567890-()+

{  

	val = event.keyCode;

	if(val<48 && val!=40 && val!=41 && val!=43 && val!=45 ) {

	  event.keyCode=0;

	}

	if(val>57) {

	  event.keyCode=0;

	}

	return true;

}



function digit(value,length)

{

	chk1="0123456789";

	for(i=0;i<length;i++)

	{

		ch1=value.charAt(i);

		rtn1=chk1.indexOf(ch1);

		if(rtn1==-1)

			return false;

	}

	return true;

}







function phonenumber(value,length)

{

	chk1="1234567890-()+";

	for(i=0;i<length;i++)

	{

		ch1=value.charAt(i);

		rtn1=chk1.indexOf(ch1);

		if(rtn1==-1)

			return false;

	}

	return true;

}





function IsRadioCheck(fname,rname)

{

	// fname => Form Name 

	// rname => Radio Name

	// If you want to retur the count than remove the comment from x and add comment to return value

	var x=0;

	var len = eval("document." + fname + "." + rname + ".length");

	for(i=0;i<len;i++)

	{	

		if (eval("document."+fname+"."+rname+"["+i+"].checked") == true)

			{

			//x++;

			return true;

			}

	}

	return false;

	//return x;

}



//********************* START of function for email-id validation  ****************************//

function isValidEmail(emailStr) 

{

	var checkTLD=1;

	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;

	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];

	// Start by checking that only basic ASCII characters are in the strings (0-127).

	for (i=0; i<user.length; i++) {

		if (user.charCodeAt(i)>127) {

			alert("Ths username contains invalid characters in e-mail address.");

			return false;

		}

	}

	for (i=0; i<domain.length; i++) {

		if (domain.charCodeAt(i)>127) {

			alert("Ths domain name contains invalid characters in e-mail address.");

			return false;

		}

	}

	if (user.match(userPat)==null) {

		alert("The username doesn't seem to be valid in e-mail address.");

		return false;

	}

	var IPArray=domain.match(ipDomainPat);

	if (IPArray!=null) {

		for (var i=1;i<=4;i++) {

			if (IPArray[i]>255) {

				alert("Destination IP address is invalid!");

				return false;

	   		}

		}

		return true;

	}

	var atomPat=new RegExp("^" + atom + "$");

	var domArr=domain.split(".");

	var len=domArr.length;

	for (i=0;i<len;i++) {

		if (domArr[i].search(atomPat)==-1) {

			alert("The domain name does not seem to be valid in e-mail address.");

			return false;

	   }	

	}

	if (checkTLD && domArr[domArr.length-1].length!=2 && 

		domArr[domArr.length-1].search(knownDomsPat)==-1) {

		alert("The address must end in a well-known domain or two letter " + "country.");

		return false;

	}



	if (len<2) {

		alert("This e-mail address is missing a hostname!");

		return false;

	}	

	return true;

}

//********************* END of function for email-id validation  ****************************//