var d = new Date();
var wd = d.getDay();

switch (wd)
{
case 0: result='Today is Sunday';break;
case 1: result='Today is Monday';break;
case 2: result='Today is Tuesday';break;
case 3: result='Today is Wednesday';break;
case 4: result='Today is Thursday';break;
case 5: result='Today is Friday';break;
case 6: result='Today is Saturday';break;
case 7: result='Today is Sunday';break;
}
document.write (result);

__________________________________________________

var name = 'Ko Kyaw'

var title = (name == 'Ko Kyaw') ? 'Ko' : 'Ma';
document.write ('Welcome ' + title + ' ' +name)

_________________________________________________

window.alert ('Welcome User');
confirm ('Are You Sure?');
prompt ('Enter Your Name','Name Here');

_________________________________________________

//var goto = confirm ('Do you want to go to Google?');
var name= prompt ('Enter Your Name','');