function load_rate(key){
	var joinKey=document.getElementById(key);
	//字段
	lth=joinKey.length;
	for (i=0;i<=lth;i++){
		joinKey.remove(0);
	}
	//var oOption = document.createElement("OPTION");
	//oOption.text="选择字段";
	//oOption.value="0";
	//joinKey.add(oOption);
	//joinKey.options[0]=new Option('Please Select','');
	joinKey.options[0]=new Option('US Dollar >> British Pound','British Pound == 0.8268');joinKey.options[1]=new Option('US Dollar >> Euro','Euro == 0.9589');}
function rateSubmit(s1,s2,s3,s4,s5,s6){
	var money_s=document.getElementById(s1);
	var rate_s=document.getElementById(s2);
	var result_s=document.getElementById(s3);
	var name_s=document.getElementById(s4);
	var money=document.getElementById(s5);
	var rate=document.getElementById(s6);
	var result=document.getElementById("resultsl");
	var ss=rate.value.split(" == ");
	if(money.value=='')
	{
		alert('please enter an amount!');
		money.focus();
		return ;
	}
	result.style.display='';
	//alert(money);
	money_s.innerHTML=money.value;
	rate_s.innerHTML=ss[1];
	name_s.innerHTML=ss[0];
	var num=money.value*ss[1];
	result_s.innerHTML=num.toFixed(2);
}
//金额验证
function onlyNum(obj)
{
	//o.value=o.value.replace(/[^\d]/g,'');
	obj.value = obj.value.replace(/[^\d.]/g,"");  //清除“数字”和“.”以外的字符
    obj.value = obj.value.replace(/^\./g,"");  //验证第一个字符是数字而不是.
    obj.value = obj.value.replace(/\.{2,}/g,".");//只保留第一个. 清除多余的.
    obj.value = obj.value.replace(".","$#$").replace(/\./g,"").replace("$#$",".");
}
 function regInput(obj, reg, inputStr)
 {
  var docSel = document.selection.createRange()
  if (docSel.parentElement().tagName != "INPUT") return false
  oSel = docSel.duplicate()
  oSel.text = ""
  var srcRange = obj.createTextRange()
  oSel.setEndPoint("StartToStart", srcRange)
  var str = oSel.text + inputStr + srcRange.text.substr(oSel.text.length)
  return reg.test(str)
 }