function checkEmail(){
	if(isEmail(document.pword.frmEmail.value)== false){
		document.pword.frmEmail.focus();
		return false;
	}
}
function checkLogin(){
	if(document.login.frmEmail.value == ""){
		document.login.frmEmail.focus();
		alert("Please enter your email address.");
		return false;
	}
	if(isEmail(document.login.frmEmail.value)== false){
		document.login.frmEmail.focus();
		return false;
	}
	if(document.login.frmPassword.value == ""){
		document.login.frmPassword.focus();
		alert("Please enter your password.");
		return false;
	}
	if(document.login.frmPassword.value.length < 5){
		document.login.frmPassword.focus();
		alert("Password too short.");
		return false;
	}
	if(document.login.frmPassword.value.length > 16){
		document.login.frmPassword.focus();
		alert("Password too long.");
		return false;
	}
	
	if(document.login.rememberMe.checked){
		// create an instance of the Date object
		var now = new Date();
		// fix the bug in Navigator 2.0, Macintosh
		fixDate(now);
		/*
		cookie expires in one year (actually, 365 days)
		365 days in a year
		24 hours in a day
		60 minutes in an hour
		60 seconds in a minute
		1000 milliseconds in a second
		*/
		now.setTime(now.getTime() + 365 * 24 * 60 * 60 * 1000);
		//var username = getCookie("username");
		setCookie("useremail", document.login.frmEmail.value, now);
		setCookie("userpassword",document.login.frmPassword.value, now);
	} else 
	{
			//deleteCookie('useremail','','');
			//deleteCooke('userpassword','','');
	}
	
}



//checks for the validity of email address provided by the user.
//this function checks whether the user has entered @ symbol at first or at last.
//whether the user has entered '.' symbol at the beggining or at last.
//whether the @ symbol and '.' is together.
function isEmail(str){
	str=fnStripSpace(str);
	if(str.charAt(0)=="@" || str.charAt(str.length-1)=="@" || str.charAt(0)=="." || str.charAt(str.length-1)=="." || str.indexOf('@')==-1 || str.indexOf('.')==-1 || str.indexOf('@')==(str.indexOf('.')-1) || str.indexOf('@')==(str.indexOf('.')+1))
	{
		alert("Please Enter Valid Email Address");
		return false
	}

}

//this function removes the empty spaces from the string passed to it.
//it slashes empty spaces on both sides of the string as well as in between the string also
function fnStripSpace(str){
	var strTemp="";
	for(intI=0;intI<str.length;intI++){
		if(str.charAt(intI)!=" "){
		strTemp=strTemp+str.substring(intI,intI+1)
		}
	}
	return strTemp
}

function commaTrim(s) 
{
  while (s.substring(0,1) == ' ') 
  {
    s = s.substring(1,s.length);
  }
  while (s.substring(s.length-1,s.length) == ',') 
  {
    s = s.substring(0,s.length-1);
  }
  return s;
}