function validatecomment()
{
	if(trimAll(document.frmComment.txtcomment.value)=="")
	{
		alert("Please enter your comment")
		document.frmComment.txtcomment.focus();
		return false;
	}
	if(document.frmComment.strCAPTCHA.value=="")
    {   alert("Please enter the code "); 
	    return false;
		document.frmComment.strCAPTCHA.focus();
	}
}