function IsNumeric(number){
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;								
 
   for (i = 0; i < number.length && IsNumber == true; i++) 
	  { 
	  Char = number .charAt(i); 
	  if (ValidChars.indexOf(Char) == -1) 
		 {
			IsNumber = false;											
		 }
	  }
   return IsNumber;
   
 }
function isEmail(str)
{
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z])?)$/i
	if (filter.test(str)){
		return true;
	}else{
		return false
	}
}