var showShortAllContent = function(commentid,CommentElm,getShort) {
		//random_str = '&rd='+Math.floor(Math.random()*9999999)+1 ;
		var showShort = "" ;
		if (getShort) {
			showShort = "&short=1" ;
		}
		var ContentAjax = new Ajax.Request(
					'get_single_comment.php?commentid='+ commentid + showShort, // 请求的URL
					{
						method: 'get', 
						onComplete: function(response) {
							
							if (getShort) {
								var extenalStr = '<em><a href="javascript:showShortAllContent(\''+commentid+'\',\''+CommentElm+'\',0);" target="_self" style="color:#000;font-weight:bold;font-size:12px;font-style:normal;">查看全文</a></em>' ;
							}
							else {
								var extenalStr = '<em><a href="javascript:showShortAllContent(\''+commentid+'\',\''+CommentElm+'\',1);" target="_self" style="color:#000;font-weight:bold;font-size:12px;font-style:normal;">隐藏全文</a></em>' ;
							}
							$(CommentElm).innerHTML = response.responseText + extenalStr ;
							
							if (getShort) {
								location.href = "#"+CommentElm+"_mao" ;
							}
							
							set_iframe_height() ;
							//alert($("comment_"+commentid).innerHTML) ;
						}
					}
				);
}