Konstruktor/prototypes aufrufen

[michaelberger]

Ich poste nochmal den ganzen Code:

  
  function Chat(i) {  
    this.interlocutor = i;  
    this.httpObject = null;  
    this.link = "";  
    this.timerID = 0;  
    var objChat = this;  
  
    //this.UpdateTimer();  
    this.doReload();  
  
    //document.getElementById("send_"+this.interlocutor).onclick = objChat.doWork();  
    //document.getElementById("sender_"+this.interlocutor).onkeyup = objChat.keypressed(event);  
  }  
  
  // Get the HTTP Object  
   function getHTTPObject(){  
     if (window.ActiveXObject) return new ActiveXObject("Microsoft.XMLHTTP");  
     else if (window.XMLHttpRequest) return new XMLHttpRequest();  
     else {  
        alert("Your browser does not support AJAX.");  
        return null;  
     }  
  };  
  
  // Change the value of the outputText field  
  Chat.prototype.setOutput = function (){  
     if(this.httpObject.readyState == 4){  
        var response = this.httpObject.responseText;  
        var objDiv = document.getElementById("result_"+this.interlocutor);  
        objDiv.innerHTML = response;  
        objDiv.scrollTop = objDiv.scrollHeight;  
        var inpObj = document.getElementById("msg_"+this.interlocutor);  
        inpObj.value = "";  
        inpObj.focus();  
     }  
  };  
  
  // Change the value of the outputText field  
  Chat.prototype.setAll = function (){  
        var objChat = this;  
     if(objChat.httpObject.readyState == 4){  
        var response = this.httpObject.responseText;  
        var objDiv = document.getElementById("result_"+this.interlocutor);  
        objDiv.innerHTML = response;  
        objDiv.scrollTop = objDiv.scrollHeight;  
     }  
  };  
  
  // Implement business logic  
  Chat.prototype.doWork = function (){  
     this.httpObject = getHTTPObject();  
     if (this.httpObject != null) {  
        var objChat = this;  
        this.link = "http://localhost/src/message.php?interlocutor="+this.interlocutor+"&msg="+document.getElementById('msg_'+this.interlocutor).value;  
        this.httpObject.open("GET", this.link , true);  
        this.httpObject.onreadystatechange = objChat.setOutput;  
        this.httpObject.send(null);  
     }  
  };  
  
  // Implement business logic  
  Chat.prototype.doReload = function (){  
     this.httpObject = getHTTPObject();  
     if (this.httpObject != null) {  
        var objChat = this;  
        this.link = "http://localhost/src/message.php?interlocutor="+this.interlocutor;  
        this.httpObject.open("GET", this.link , true);  
        this.httpObject.onreadystatechange = objChat.setAll;  
        this.httpObject.send(null);  
     }  
  };  
  
  Chat.prototype.UpdateTimer = function () {  
     var objChat = this;  
     this.doReload();  
     this.timerID = setTimeout(objChat.UpdateTimer(), 5000);  
  };  
  
  
  Chat.prototype.keypressed = function (e){  
     if(e.keyCode=='13'){  
        this.doWork();  
     }  
  };