//**************************************************
//		Filename : 			function.php						 
//		Application:	 	pornpra.com
//		Author: 			Thanaporn Phanphuet
//							Veena  Khongpis 
//		Date :  			22/04/2005
//		Copyright  2007(C)  www.pornpra.com All Rights Reserved.
//**************************************************
function doHide(hide) {
	document.all(hide).style.display = 'none';
}
function doShow(show) {
	document.all(show).style.display = 'block';
}
function openPopUp(theURL1,winName1,features1) {
	 window.open(theURL1,winName1,features1);
}
function check_digit_id_card(id_card) {
	var multi_num = 13;
	var str_digit = 0;
	var result = 0;
		if(id_card.length != 13) {
			return false;
		} 
		while(multi_num != 1) {
			if(id_card.charAt(str_digit) == Number.NaN) {
				return false;
			}
			result = result + id_card.charAt(str_digit)*multi_num;
			multi_num = multi_num - 1;
			str_digit = str_digit + 1; 
		}

		result = result % 11;
		if(result == 0) result = 10;

			result = 11 - result;

		if(result == 10) result = 0;

		if(result == id_card.charAt(12)) {
			return true;
		} else {
			return false;
		}
}
function check_length_minmax(obj,lengthmin,lengthmax) {
	if(obj==""){
		return false;
	}
	if((obj.length>=lengthmin) && (obj.length<=lengthmax)){
		return true;
	}else{
		return false;
	}
	return true;
}
function isValidEmail(str) {
   return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
 
}
function IsEmpty(aTextField) {
   if ((aTextField.value.length==0) ||
   (aTextField.value==null)) {
      return true;
   }
   else { return false; }
}
function IsNumeric(sText)
{
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
   
   }
function checkID(id) {
    if(id.length != 13) return false;
    for(i=0, sum=0; i < 12; i++)
        sum += parseFloat(id.charAt(i))*(13-i);
    if((11-sum%11)%10!=parseFloat(id.charAt(12))) return false;
    return true;
}

function check_userpass() {
e_k=event.keyCode
if ((e_k < 13) || (e_k >13 && e_k < 45) || (e_k > 45 && e_k < 48) || (e_k > 57 && e_k < 65) || (e_k > 90 && e_k < 95) || (e_k > 95 && e_k < 97) || (e_k > 122)) {
event.returnValue = false;
alert("ต้องเป็นตัวอักษรภาษาอังกฤษ (a-z, A-Z), ตัวเลข (0-9), เครื่องหมาย \"-\", เครื่องหมาย \"_\" เท่านั้น  \nและห้ามมีการเว้นวรรคเด็ดขาด กรุณาตรวจสอบข้อมูลของท่านอีกครั้ง... \n(Must be at letters(a-z, A-Z), number (0-9), \"-\" sign, \"_\" sign, but no space \nPlease enter your information again...)");
}
}