function check()
{

    if (document.forms[0].name.value=="")
    {
      alert("Please enter your name" );
      document.forms[0].name.focus();
      return false;
    }
  
 if (document.forms[0].email.value=="")
    {
      alert("please enter your Email Id" );
      document.forms[0].email.focus();
      return false;
    }
 if (invalidemail(document.forms[0].email.value))
    {
  
  alert("email address should be of type 'abc@pqr.com' or 'abc@pqr.co.in' etc. ");
       document.forms[0].email.focus();
       return false;
    }
 if (document.forms[0].comments.value=="")
    {
      alert("Please enter your query / message" );
      document.forms[0].comments.focus();
      return false;
    }

/*
cdate=new Date();
bdate=new Date(document.frm.date1.value);
currentdate(cdate);

if(cdate>=bdate)
  {
  alert("Booking date must be greater than current date");
 
  document.frm.date1.focus();
  return false;
 }*/
return true;
}

function invalidemail(s)
{
  res=0;
  len=s.length;

   for(i=0;i<len;i++)
     { 
       if(s.charAt(i)=='@' )
	 
   for(j=i;j<len;j++)
            {
              if(s.charAt(j)=='.')
                  res=1;
	
             }
     }  
if (res==0)
    return true; 
  else
     return false; 
   
}


function isValidTime(timeStr) 
{
 var timePat = /^(\d{1,2}):(\d{2})?(\s?(AM|am|PM|pm))?$/;
 var matchArray = timeStr.match(timePat);
 if (matchArray == null) 
 {
  alert("Time is not in a valid format.The valid format for time is 'hr:min' ");
  return false;
 }
hour = matchArray[1];
minute = matchArray[2];
ampm = matchArray[4];
if (ampm=="") { ampm = null }
if (hour < 0  || hour > 23) 
 {
 alert("Hour must be between 1 and 12. ");
 return false;
 }
if (hour <= 12 && ampm == null)  
{

    alert("You must specify AM or PM.");
    return false;
   
 }

if (minute < 0 || minute > 59) 
 {
  alert ("Minute must be between 0 and 59.");
  return false;
 }

return true;
}
function currentdate()
{ 

 s=new Date();
day=s.getDate();
month=s.getMonth()+1;
yr=s.getYear();

}