var speed = 3;
    
    function speedLeft()
    {
        speed = 10;
    }
    function unSpeedLeft()
    {
        speed = 3;
    }
    function speedRight()
    {
    
        speed = -10;
    }
    function unSpeedRight()
    {
        speed = -3;
    }





function get_doc(id_article){
	var agent = navigator.userAgent.toLowerCase();
	var ie = (agent.indexOf("msie") != -1);
	var txt = ""
	var xhr_object = null;  
	var mylink
	var mydata
   	//var fid = obj.value


if(window.XMLHttpRequest)  
   			xhr_object = new XMLHttpRequest();   
		else if(window.ActiveXObject)  
    		xhr_object = new ActiveXObject("Microsoft.XMLHTTP");   
		else  
			return false;  
   		mylink = "docImg.php";
		mydata = "docId="+id_article;
 		xhr_object.open("POST", mylink, false); 
		xhr_object.setRequestHeader("Content-type", "application/x-www-form-urlencoded");  
 		xhr_object.send(mydata);   
 		if(xhr_object.readyState == 4){
		txt = xhr_object.responseText;
		if(ie){
		document.all.item("menu").innerHTML=txt;
		
		}
		else{
		document.getElementById("menu").innerHTML=txt;
		}
	};   
 document.getElementById("menu").style.visibility = 'visible';

	
} 

function closeDoc(object){
 document.all[object].style.visibility = 'hidden';	
}