createTextRange

HTML

<input type="text" value="search" id="searchText" />
test

JavaScript

YUI().use("node","event",function(Y) {
var inp = document.getElementById("searchText");
    Y.one("#searchText").on("focus", function(a) {
        if (inp.setSelectionRange){
			Y.log("setSelectionRange");
			inp.setSelectionRange(-6,-6); 
            inp.focus();
		} else if (inp.createTextRange) {
			Y.log("createTextRange");
			var sel = inp.createTextRange();
			sel.collapse(true);
			sel.moveStart("sentence", 0);
			sel.moveEnd("sentence", 0);
			sel.select();
		} 
    });
});