function TrimString(sInString) {
    sInString = sInString.replace( /^\s+/g, "" );// strip leading
    return sInString.replace( /\s+$/g, "" );// strip trailing
}

function page_form_submit(page){
	
	var cmurl_val_obj = document.getElementById("cmurl_val");
    var cmurl_val = cmurl_val_obj.value;
	
$.getJSON("http://comment.goodbaby.com/default/index/index?callback=?",
                                    {cmurl:cmurl_val,desire_page:page,template:'down'},
                                    function(json){
                                        document.getElementById("common_comments_section").innerHTML = json.data;
                                    });
	
	return;
}

function check_cmform(){
	if (TrimString(document.forms['cm_submit'].cmcontent.value)){
		document.forms['cm_submit'].submit();	
	}else{
		alert("评论不能为空！");return;
	}
	
}

function chk_comment_length(){
	if (document.getElementById('cmcontent').value.length<=2000){
	}else{
		document.getElementById('cmcontent').value=document.getElementById('cmcontent').value.substring(0,2000);
	}
}