//公用的js文件 刘翔

// IE support(ajax)
	if (window.ActiveXObject && !window.XMLHttpRequest) {
	 	window.XMLHttpRequest=function() {
	    	return new ActiveXObject((navigator.userAgent.toLowerCase().indexOf('msie 5') != -1) ? 'Microsoft.XMLHTTP' : 'Msxml2.XMLHTTP');
		};
	}
function getObject(objectId) {
  if(document.getElementById && document.getElementById(objectId)) {
// W3C DOM
return document.getElementById(objectId);
  } else if (document.all && document.all(objectId)) {
// MSIE 4 DOM
return document.all(objectId);
  } else if (document.layers && document.layers[objectId]) {
// NN 4 DOM.. note: this won't find nested layers
return document.layers[objectId];
  } else {
return false;
  }
}
//伸缩
chengeLength = function(){
   var status = document.getElementById("status_num").value;
   if(status=="1"){//减
       document.getElementById("change_pic").src = "../images/user/zhitiao_add1.gif";
       document.getElementById("bbb").style.display = "";
       document.getElementById("ccc").style.display = "none";
       document.getElementById("status_num").value = "2";
   }else if(status=="2"){//加
       document.getElementById("change_pic").src = "../images/user/zhitiao_add2.gif";
       document.getElementById("bbb").style.display = "none";
       document.getElementById("ccc").style.display = "";
       document.getElementById("status_num").value = "1";
   }
}
//显示纸条
infoPubShow = function(id){
   document.getElementById("message_pubshow").style.display = "";
   var req=new XMLHttpRequest();  
   if (req) {	    
     req.onreadystatechange=function(){  	    
	    if (req.readyState==4 && req.status==200) {
			if (req.responseText!=""){
			   document.getElementById("message_pubshow").innerHTML = req.responseText;
			}				
		}		 
	}
  }
  req.open('POST', "/user/pubShowMessage.do");
  req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
  req.send("zhitiao_id="+id);
}
//关闭公用纸条
closePub = function(count){
   document.getElementById("message_pubshow").style.display = "none";
   document.getElementById("countnum_show").innerHTML = count;
   window.parent.location.reload();
}
chengeLength2 = function(){
   var status = document.getElementById("status_num").value;
   if(status=="1"){//减
       document.getElementById("change_pic").src = "../images/user/zhitiao_add1.gif";
       document.getElementById("bbb").style.display = "";
       document.getElementById("ccc").style.display = "none";
       document.getElementById("status_num").value = "2";
       window.parent.document.getElementById("msg").height = "60";
   }else if(status=="2"){//加
       document.getElementById("change_pic").src = "../images/user/zhitiao_add2.gif";
       document.getElementById("bbb").style.display = "none";
       document.getElementById("ccc").style.display = "";
       document.getElementById("status_num").value = "1";
       window.parent.document.getElementById("msg").height = "190";
   }
}