function checkdata() {
if( form1.userName.value =="" ) {
alert("请填写姓名")
document.form1.userName.focus();
return false;
}
if((!form1.userSex(0).checked)&&(!form1.userSex(1).checked)){ 
alert("请选择性别");
form1.userSex(0).focus(); 
return false;
}
if( form1.userProvince.value =="" ) {
alert("请输入所在省份")
document.form1.userProvince.focus();
return false;
}
if( form1.userHospital.value =="" ) {
alert("请输入所在医院")
document.form1.userHospital.focus();
return false;
}
if( form1.userCode.value =="" ) {
alert("请输入邮编")
document.form1.userCode.focus();
return false;
}
if(isNumberString(form1.userCode.value,"1234567890")!=1&&!form1.userCode.value=="") {
alert("邮编不是数字")
document.form1.userCode.focus();
return false;
}
if( form1.userPCI.value =="" ) {
alert("请输入07年所在医院PCI例数")
document.form1.userPCI.focus();
return false;
}
if(isNumberString(form1.userPCI.value,"1234567890")!=1&&!form1.userPCI.value=="") {
alert("07年所在医院PCI例数不是数字")
document.form1.userPCI.focus();
return false;
}
if( form1.userPCIgeren.value =="" ) {
alert("请输入07年个人PCI例数")
document.form1.userPCIgeren.focus();
return false;
}
if(isNumberString(form1.userPCIgeren.value,"1234567890")!=1&&!form1.userPCIgeren.value=="") {
alert("07年个人PCI例数不是数字")
document.form1.userPCIgeren.focus();
return false;
}
if( form1.userMphone.value =="" ) {
alert("请输入手机电话")
document.form1.userMphone.focus();
return false;
}
if(isNumberString(form1.userMphone.value,"1234567890")!=1&&!form1.userMphone.value=="") {
alert("手机电话不是数字")
document.form1.userMphone.focus();
return false;
}
if( form1.userTjName.value =="" ) {
alert("请输入推荐人姓名")
document.form1.userTjName.focus();
return false;
}
if( form1.userTjTel.value =="" ) {
alert("请输入推荐人联系方式")
document.form1.userTjTel.focus();
return false;
}
if(isNumberString(form1.userTjTel.value,"1234567890")!=1&&!form1.userTjTel.value=="") {
alert("推荐人联系方式不是数字")
document.form1.userTjTel.focus();
return false;
}
if( form1.userTjInfo.value =="" ) {
alert("请输入推荐理由")
document.form1.userTjInfo.focus();
return false;
}
if( form1.validatecode.value =="" ) {
alert("请输入验证码")
document.form1.validatecode.focus();
return false;
}
   return true;     
}
function isNumberString (InString,RefString)
{
if(InString.length==0) return (false);
for (Count=0; Count < InString.length; Count++)  {
	TempChar= InString.substring (Count, Count+1);
	if (RefString.indexOf (TempChar, 0)==-1)  
	return (false);
}
return (true);
}