function enquiry() 
{
	
txtname = document.getElementById("txtname").value;
txtemail = document.getElementById("txtemail").value;
txtaddr= document.getElementById("txtaddr").value;


txtno= document.getElementById("txtno").value;
txtsub= document.getElementById("txtsub").value;
txtdesc=document.getElementById("txtdesc").value;


if(txtname=="") 
{
hideAllErrors();
document.getElementById("txtnameError").style.display = "inline";
document.getElementById("txtname").select();
document.getElementById("txtname").focus();
return false;
}

if(txtemail=="") 
{
hideAllErrors();
document.getElementById("txtemailError").style.display = "inline";
document.getElementById("txtemail").select();
document.getElementById("txtemail").focus();
return false;
}

if(txtemail != "") 
{
   var filter=/^.+@.+\..{2,3}$/;	
   hideAllErrors();
   if (!filter.test(txtemail))
   {
		document.getElementById("txtemailError").style.display = "inline";
		document.getElementById("txtemail").select();
		document.getElementById("txtemail").focus();
		return false;
	}
}


if(txtaddr=="")
{
hideAllErrors();
document.getElementById("txtaddrError").style.display = "inline";
document.getElementById("txtaddr").select();
document.getElementById("txtaddr").focus();
return false;
}



if(txtno=="")
{
hideAllErrors();
document.getElementById("txtnoError").style.display = "inline";
document.getElementById("txtno").select();
document.getElementById("txtno").focus();
return false;
}

if(txtsub=="")
{
hideAllErrors();
document.getElementById("txtsubError").style.display = "inline";
document.getElementById("txtsub").select();
document.getElementById("txtsub").focus();
return false;
}

if(txtdesc=="")
{
 hideAllErrors();
document.getElementById("txtdescError").style.display = "inline";
document.getElementById("txtdesc").select();
document.getElementById("txtdesc").focus();
return false;
}

return true;
}
 
function hideAllErrors() 
{
	document.getElementById("txtnameError").style.display = "none";
	document.getElementById("txtemailError").style.display = "none";
	document.getElementById("txtaddrError").style.display = "none";
	document.getElementById("txtnoError").style.display = "none";
    document.getElementById("txtsubError").style.display = "none";
	document.getElementById("txtdescError").style.display = "none";
}