function submitMainsearch()
{
	if (document.frmMainsearch.txtKey.value.indexOf(" ") == 0)
	{
		alert("Keyword should not start with spaces.");
		document.frmMainsearch.txtKey.focus();
		return false;
	}
	if (document.frmMainsearch.txtCode.value.indexOf(" ") == 0)
	{
		alert("Item no. should not start with spaces.");
		document.frmMainsearch.txtCode.focus();
		return false;
	}
	if ((document.frmMainsearch.txtKey.value == "") && (document.frmMainsearch.txtCode.value == ""))
	{
		alert("Please enter atleast one search criteria.");
		document.frmMainsearch.txtKey.focus();
		return false;
	}

	document.frmMainsearch.submit();
	return true;
}