<!--
function get_radio_value()
{
for (var i=0; i < document.convgold.R1.length; i++)
   {
   if (document.convgold.R1[i].checked)
      {
      var rad_val = document.convgold.R1[i].value;
      }
   }
   return rad_val;
}



function setCookie(c_name,value,expiredays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate()+expiredays);
document.cookie=c_name+ "=" +escape(value)+
((expiredays==null) ? "" : ";expires="+exdate.toUTCString());
}

function getCookie(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=");
  if (c_start!=-1)
    {
    c_start=c_start + c_name.length+1;
    c_end=document.cookie.indexOf(";",c_start);
    if (c_end==-1) c_end=document.cookie.length;
    return unescape(document.cookie.substring(c_start,c_end));
    }
  }
return "";
}



function init()
{
var d = new Date()
var today = new Date(d)
  var year = today.getYear()
 var day = eval( today.getDate())


  if(year<1000) year+=1900

  document.convgold.date.value=((today.getMonth()+1) + "/" + 
                  day  + "/" + (year+"").substring(2,4))



}                  
function validate()
{
alert (false);
if (document.convgold.karat.value>24 || document.convgold.karat.value<1)
{  alert("please enter a valid number of karats");
	return false;}
}   
  

var dtCh= "/";

var minYear=1900;

var maxYear=2012;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr){
	
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strMonth=dtStr.substring(0,pos1)
	var strDay=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	var curr =document.convgold.expr.value;
		var metal =document.convgold.metal.value;
metalname=metal;
if (metal == "XAU")
metalname="Gold";
if (metal == "XAG")
metalname="Silver";
if (metal == "XPT")
metalname="Platinum";
if (metal == "XPD")
metalname="Palladium";


minYear=2011;

if (curr == "USD" && metal == "XAU") 
	
minYear=1791;
if (curr == "GBP" && metal == "XAU") 
minYear=1257;
if (curr == "GBP" && metal == "XAG") 
minYear=1968;
if (curr == "USD" && metal == "XAG") 
minYear=1968;


//if (curr == "GBP" ) 


	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	


	
	
	if (pos1==-1 || pos2==-1){
		alert("The date format should be : mm/dd/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day")
		return false
	}
	if (year <minYear)
	{
		alert(metalname+" prices for "+curr+" are only available from "+minYear);
		return false;
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid date")
		return false
	}
return true
}

function ValidateForm(){
	var dt=document.frmSample.txtDate
	if (isDate(dt.value)==false){
		dt.focus()
		return false
	}
    return true
 }




  function jload()
{
	

	if (document.convgold.karat.value >0)
document.convgold.purity.value = Math.round(eval(document.convgold.karat.value)/.024)/10;
else
document.convgold.purity.value = "";

if (document.convgold.karat.value>24 )
{  alert("The number of karats cannot be greater than 24");
document.convgold.karat.focus();
	return false;}	
if (document.convgold.karat.value<1)
{  alert("please enter a valid number of karats");
document.convgold.karat.focus();
	return false;}
	
if (isNaN(document.convgold.Amount.value))
	{  alert("please enter a valid Weight");
	document.convgold.Amount.focus();
	return false;}	
	
if (isNaN(document.convgold.karat.value))
	{  alert("please enter a valid number of karats");
	document.convgold.karat.focus();
	return false;}	
	
	
//cookie
cook = getCookie('prm');
//alert (cook);
cook = document.convgold.Amount.value+";"+document.convgold.karat.value+";"+document.convgold.unit.value+";"+document.convgold.expr.value+";"+document.convgold.metal.selectedIndex+";"+document.convgold.expr.selectedIndex+";"+document.convgold.purity.value+";"+document.convgold.unit.selectedIndex;

setCookie('prm',cook,3650);

	
//document.convgold.value.value = eval(document.convgold.Amount.value) * (eval(document.convgold.karat.value)/100);

//alert (document.convgold.R1[0].checked)
//if (document.convgold.R1[0].checked)
// document.convgold.value.value= eval(document.convgold.value.value)* 0.4874; //baht
//else if(document.convgold.R1[1].checked)
 //document.convgold.value.value= eval(document.convgold.value.value)* 0.03215; //gram

var dt=document.convgold.date;
	if (isDate(dt.value)==false){
		dt.focus();
		return false;}


	
		return true;
		
}
//-->

