var p = document.getElementById('pass');
/*@cc_on
    @if (@_jscript)
    var inp = document.createElement("<input name='pass'>");
    inp.id = 'pass1';
    inp.type = 'text';
    inp.value = 'Enter your password';
    p.parentNode.insertBefore(inp,p);
    p.parentNode.removeChild(p);
    p = document.getElementById('pass1');
    @else */
p.type = 'text';
p.value = 'your password';
/* @end @*/
p.onfocus = function() {
    if (this.type == 'text') {
    /*@cc_on
        @if (@_jscript)
        var inp = document.createElement("<input name='pass'>");
        inp.id = 'pass';
        inp.type = 'password';
        inp.value = '';
        this.parentNode.insertBefore(inp,this);
        this.parentNode.removeChild(this);
        inp.focus();
        @else */
    this.value = '';
    this.type = 'password';
    this.focus();
    /* @end @*/
    }
}