/************************************************************************************** This function is specialized to check if the entered e_mail 
is in the correct form or not??
***************************************************************************************/
function isEmailValid(obj)
{
	var atsymbol = obj.value.indexOf('@');
	var dot = obj.value.lastIndexOf('.');
	var len = obj.value.length;
	var space = obj.value.indexOf(' ');
	var EmailOk = true;
	if (len != 0)
	{
		if ((atsymbol < 1)||(dot <= atsymbol+1)||(dot == len-1)||(space != -1))
		{
			EmailOk = false;
			alert('الرجاء وضع بريد صحيح­');
		}
	}
	else
	{
		EmailOk = false;
		alert('الرجاء وضع بريد صحيح­');
	}
	if (!EmailOk)
	{
		obj.focus();
		obj.select();
	}
	return EmailOk;
}