function isEmailValid(sEmail) {
	
	if (sEmail.value == '' || sEmail.indexOf('.') == 0 || sEmail.indexOf('.') == -1 || sEmail.indexOf('@') == 0 || sEmail.indexOf('@') == -1 || sEmail.indexOf('.') == sEmail.length - 1 || sEmail.indexOf(',') >= 0) {

		return false;
	} else {

		return true;
	}
}
function isPhoneNumberValid(pnumber)
{
    
	
  var pattern = "0123456789()-";
   var i =0;
   do
   {
     
	 
	 var pos = 0;
	 for (j = 0; j < pattern.length; j++)
     
	    if (pnumber.charAt(i) == pattern.charAt(j))
          {
		      pos = 1;
			  break;
		  }
	 
	 i++;
	} while (pos ==1 && i < pnumber.length)
 if (pos == 0)
     return false;
 else 	 
     return true;
}