Javascript object and element object this conflict

Question

this is my main problem while using javascript objects. if theres another function in method this explains that function or element object. and i want to fire my dinamic object method in that function. How can i do that? Thanks for help.

Here's an example code:

var myobject = function(param1,param2) {
    this.parentElement = element.get(param2); /*element is my helper object*/
    this.param1 = param1;
    this.param3 = null;
    this.isSomething = false;
    this.init = function(){
        if(this.isSomething){
            for(var i=0; i<this.param1.length; i++){
                this.param3 = element.create("a"); 
                this.param3.setAttribute("href","javascript:;");
                this.param3.innerHTML = i;
                this.param3.onclick = function(){
                    this.action(i); /*my problem is here*/
                }
                this.parentElement.appendChild(this.param3)
            }
        }
    }
    this.action = function(i){
        console.log(i);
    }
}

var useobject = new myobject(["example","data"],".someselector");