function check()
{
if(document.aspnetForm.ctl00$ContentPlaceHolder1$T1.value=="") {
    alert("Please input Law Firm！");
    document.aspnetForm.ctl00$ContentPlaceHolder1$T1.focus();
	return false;}
   if(document.aspnetForm.ctl00$ContentPlaceHolder1$T2.value=="") {
    alert("Please input Address！");
    document.aspnetForm.ctl00$ContentPlaceHolder1$T2.focus();
	return false;}
   if(document.aspnetForm.ctl00$ContentPlaceHolder1$T7.value=="") {
    alert("Please input Work Phone！");
    document.aspnetForm.ctl00$ContentPlaceHolder1$T7.focus();
	return false;}
   if(document.aspnetForm.ctl00$ContentPlaceHolder1$T4.value=="") {
    alert("Please input Tel No.！");
    document.aspnetForm.ctl00$ContentPlaceHolder1$T4.focus();
	return false;}
   if(document.aspnetForm.ctl00$ContentPlaceHolder1$T5.value=="") {
    alert("Please input State！");
    document.aspnetForm.ctl00$ContentPlaceHolder1$T5.focus();
	return false;}
	
   if(document.aspnetForm.ctl00$ContentPlaceHolder1$T7.value.length!=0)
   {
    if (document.aspnetForm.ctl00$ContentPlaceHolder1$T7.value.charAt(0)=="." ||        
         document.aspnetForm.ctl00$ContentPlaceHolder1$T7.value.charAt(0)=="@"||       
         document.aspnetForm.ctl00$ContentPlaceHolder1$T7.value.indexOf('@', 0) == -1 || 
         document.aspnetForm.ctl00$ContentPlaceHolder1$T7.value.indexOf('.', 0) == -1 || 
         document.aspnetForm.ctl00$ContentPlaceHolder1$T7.value.lastIndexOf("@")==document.aspnetForm.ctl00$ContentPlaceHolder1$T7.value.length-1 || 
         document.aspnetForm.ctl00$ContentPlaceHolder1$T7.value.lastIndexOf(".")==document.aspnetForm.ctl00$ContentPlaceHolder1$T7.value.length-1)
     {
      alert("Invalid email address！");
      document.aspnetForm.ctl00$ContentPlaceHolder1$T7.focus();
      return false;
      }
      }
 else
  {
   alert("Please input email！");
   document.aspnetForm.ctl00$ContentPlaceHolder1$T7.focus();
   return false;
   }
   
	if(document.aspnetForm.ctl00$ContentPlaceHolder1$T6.value=="") {
    alert("Please input Work Phone！");
    document.aspnetForm.ctl00$ContentPlaceHolder1$T6.focus();
	return false;}
	
	if(document.aspnetForm.ctl00$ContentPlaceHolder1$T8.value=="") {
    alert("Please input Contact Person！");
    document.aspnetForm.ctl00$ContentPlaceHolder1$T8.focus();
	return false;}
	
	
	if (!(document.aspnetForm.ctl00$ContentPlaceHolder1$R4.checked))
    {
        alert("Which System Demonstration are You Applying for? ");  
        document.aspnetForm.ctl00$ContentPlaceHolder1$R4.focus();
        return false;
   }
}