function ValidateForm(){

    var FirstName=document.orderform.FirstName
    var LastName=document.orderform.LastName
    var Email=document.orderform.Email
    
        if ((FirstName.value==null)||(FirstName.value=="")){
        alert("Please Enter your First Name")
        FirstName.focus()
        return false
    }
        if ((LastName.value==null)||(LastName.value=="")){
        alert("Please Enter your Last Name")
        LastName.focus()
        return false
    }
        if ((Email.value==null)||(Email.value=="")){
        alert("Please Enter your Email")
        Email.focus()
        return false
    }

    return true
 }