function checkformcall()
{
var complete=true;
var error="";
var msg="Please enter the following missing data :\n\n";

var temp=document.forms['f1'].elements['call'].value;
if (temp=="")
{error=error + "Call or part call missing ! \n";
complete=false;
}

if (complete==false)
{
window.alert(msg + error);
}
return complete;
}


function checkformgrid()
{
var complete=true;
var error="";
var msg="Please enter the following missing data :\n\n";

var temp=document.forms['f1'].elements['loc'].value;
if (temp=="")
{error=error + "Incorrect grid entry ! \n";
complete=false;
}


if (complete==false)
{
window.alert(msg + error);
}
return complete;
}




function checkformdate()
{
var complete=true;
var error="";
var msg="Please enter the following missing data :\n\n";

var temp=document.forms['f1'].elements['dy'].value;
if (temp=="")
{error=error + "Day  \n";
complete=false;
}


var temp=document.forms['f1'].elements['mn'].value;
if (temp=="")
{error=error + "Month  \n";
complete=false;
}

var temp=document.forms['f1'].elements['yr'].value;
if (temp<4)
{error=error + "Year  \n";
complete=false;
}

if (temp=="")
{error=error + "Year  \n";
complete=false;
}

if (temp<2002)
{error=error + "Year wrong (2002 onwards) \n";
complete=false;
}

if (complete==false)
{
window.alert(msg + error);
}
return complete;
}