function getPixelsFromTop(obj){
    objFromTop = obj.offsetTop;
    while(obj.offsetParent!=null) {
        objParent = obj.offsetParent;
        objFromTop += objParent.offsetTop;
        obj = objParent;
        }
    return objFromTop;
    }
    
function getPixelsFromLeft(obj){
    objFromLeft = obj.offsetLeft;
    while(obj.offsetParent!=null) {
        objParent = obj.offsetParent;
        objFromLeft += objParent.offsetLeft;
        obj = objParent;
        }
    return objFromLeft;
    }    
    
    
var x;
var y;
    
function creatediv() { 
    var newdiv = document.createElement('div');
    
    newdiv.style.width = "24px";
    newdiv.style.height = "11px";
    
    newdiv.style.position = "absolute";
    newdiv.style.left = x + "px";
    newdiv.style.top = y + "px";
    
    newdiv.style.background = "#DA7E31";
    newdiv.style.border = "0px";
    document.body.appendChild(newdiv);
    
    }
    
function start(obj) {
    x = getPixelsFromLeft(obj) - 0 + 5;
    y = getPixelsFromTop(obj);
       
    for(i = 0; i <= 13; i++) {
        var random_number = Math.floor(Math.random()*6);
        column(random_number);
        x = x - 0 + 31;
        y = getPixelsFromTop(obj);   
        
        } 
    }
    
function column(num) {
    for(j = 0; j < num; j++) {
        y = y - 15;
        creatediv();
        }
    
    }
    
function delete_divs() {
    var divs = document.body.getElementsByTagName('div');  
    for(i = 0; i <= divs.length; i++) {
        document.body.removeChild(divs[i]);
        }   
    if (divs.length > 0) {
        delete_divs();
        }
    alert(divs.length);             
    }