[`kush`]

para=document.getElementById("h3").childNodes[0];
rng=document.createRange();
rng.setStart(para, 0);
rng.setEnd(para, 3);


sel=window.getSelection();
sel.addRange(rng);

w=sel.toString();
alert(w);

sel.removeRange(rng);
w=sel.toString();
alert(w);