When I used VisualBasic10, if I needed a Msgbox to display different values on multiple lines, I would terminate each line with vbcrlf (carriage return line feed); so that each string and return value would be displayed simply on its' own line. In JS I still use window.alerts to test values at runtime, but cannot display different values on their own line in the popup alert. I'm guessing this is a pretty basic question. Can someone give me a basic answer which definitively qualifies as an answer?
Try this: (\n\r added within a string).
function DisplayAlert() {
var scrWid= document.documentElement.clientWidth; //Get screen width.
var scrHi=document.documentElement.clientHeight ; //Get screen height.
var jsnl = "\r\n"; //carriage return and newline.
var msg = ("ScreenWidth is " + scrWid + jsnl + "ScreenHeight is " +
document.documentElement.clientHeight);
alert(msg);
}