var clickCount = 0;
function clearCommentContent(oObject) {
    clickCount++;
    if (clickCount == 1) {
	    oObject.value = "";
    }
}
function checkCommentContent(oObject) {
    if (clickCount == 0)
	    alert("请先填写您的个人看法");
    else if(checkInput() != false)
	    oObject.form.submit();
}
function doZoom(size){
document.getElementById("LabelContent").style.fontSize=size+'px'
}