/**
 * Verificarea daca un string e ok , ca o adresa de email
 * 
 * @author   	Radu Calauz, Roman Cristinel, Pop Doru
 * @file		email_check.js
 * @copyright	İRadu Calauz
 * @version  	[Tacke, Zegetina, Dadas - 1.0.0, 2002/09/20]
 *
 * @param   emailStr  string-ul pe care face testarea
 *
 * @return  boolean
 */

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)	{return false;}

	var user=matchArray[1]
	var domain=matchArray[2]
	
	if (user.match(userPat)==null)	{return false}

	var IPArray=domain.match(ipDomainPat)

	if (IPArray!=null)
	{
		for (var i=1;i<=4;i++)
		{
		  if (IPArray[i]>255) {return false}
		}
		return true
	}

	var domainArray=domain.match(domainPat)

	if (domainArray==null)	{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)
	{return false}

	if (len<2)	{return false}

	return true;
}