function check_mssg_length(max,obj,display) {
		var cur = obj.value.length;
		try{
			document.getElementById(display).innerHTML = parseInt(max - cur);
		} catch(e) {}
		
		try{
			if (parseInt(max - cur) < 0) {
				obj.value = obj.value.substr(0,max);
			}
		} catch(e) {}
	}
	
	function set_rating(rate) {
		if (rate==0) {
			document.getElementById('rate_pos').checked=false;
			document.getElementById('rate_neg').checked=true;
			document.getElementById('rate_pos_img').style.backgroundImage="url('/web/images/rating_up.jpg')";
			document.getElementById('rate_neg_img').style.backgroundImage="url('/web/images/rating_down_active.jpg')";
		} else {
			document.getElementById('rate_pos').checked=true;
			document.getElementById('rate_neg').checked=false;
			document.getElementById('rate_pos_img').style.backgroundImage="url('/web/images/rating_up_active.jpg')";
			document.getElementById('rate_neg_img').style.backgroundImage="url('/web/images/rating_down.jpg')";
		}
	}