function wpm(speed) {
var terms=new Array("Most","of","what","we","call","management","consists","of","making","it","difficult","for","people","to","get","their","work","done.","");
	
    var i=0;
	var speed;

    var myTimer =setInterval(timer,speed); //1000 will run it every 1 second
    function timer() {
        document.getElementById("timer").innerHTML = terms[i];
        i++;
        if (i > 18){
            clearInterval(myTimer);
        }

    }
	    }