// JavaScript Document
// 添加留言页面所调用,请不要改动
function invokeServer(url)   
		{
		var script_old=document.getElementById('temp_script');  
             if(script_old!=null && document.all)  
             {  
                script_old.src = url;   
                return;  
             }  
               
            var head=document.documentElement.firstChild;   
            var script=document.createElement('script');   
            script.id='temp_script';   
            script.type = 'text/javascript';   
            script.src = url;   

            if(script_old!=null)  
               head.replaceChild(script,script_old);   
            else   
               head.appendChild(script);   
			}