<body margin="0"> 
</body> 
<script> 
    function Console(width,height,command) 
    { 
        var container=document.createElement("div"); 
        this.container=container; 

        container.runtimeStyle.width=(width); 
        container.runtimeStyle.height=(height); 
        container.runtimeStyle.margin="0px"; 
        container.runtimeStyle.backgroundColor="black"; 
        container.runtimeStyle.fontFamily="Terminal"; 
        container.runtimeStyle.color="white"; 
        container.runtimeStyle.fontSize="16px"; 
        this.output=document.createElement("div"); 
        container.appendChild(this.output); 
        container.innerHTML+="js>" 
        this.input=document.createElement("input"); 
        container.appendChild(this.input); 
        this.input.runtimeStyle.backgroundColor="black"; 
        this.input.runtimeStyle.borderWidth="0px"; 
        this.input.runtimeStyle.color="white"; 
        this.input.runtimeStyle.fontFamily="Terminal"; 
        this.input.runtimeStyle.width="90%" 
        this.input.runtimeStyle.fontSize="16px" 
        this.input.runtimeStyle.position="relative"; 
        this.input.runtimeStyle.top="2px"; 
        command=command||function(str) 
        { 

            var e; 
            try{ 
                var r=eval(str); 
            } catch(e) { 
                return "Bad command"; 
            } 
            return r; 

        } 

        this.input.command=function() 
        { 
            this.parentNode.childNodes[0].innerHTML+=this.value+'<br/>' 
            this.parentNode.childNodes[0].innerHTML+=(command(this.value)+"<br/>") 

        } 
        this.input.onkeyup=new Function("e","e=e||event;if(e.keyCode!=13)return;this.command();this.value='';"); 
        this.appendto=function(parent) 
        { 
            parent.appendChild(this.container); 
        } 
        container=null; 
    } 

    //var db=new DrawingBoard(100,100) 
    //db.drawLine([5,5],[36,44],"red") 
    //document.body.appendChild(db.container); 
    var c=new Console("100%","100%"); 
    c.appendto(document.body); 

</script>