javascript string replace with another value

Question

Hello there ,

var s = "width:20px;height:25px;color:red;font-family:myfontfamily";

i have a string like this,now how can i change the values of width,height etc using javascript.there may be a \\n after or before the properties (width,height etc)..

Ex : i want to change width to 50px on s . so it will be

var s = "width:50px;height:25px;color:red;font-family:myfontfamily";

My another replated Question is here Regular Expression to get text from css but it not working exactly what i need.

Please help me.

Thank you.

Update : You can see the Result on my fiddle here : http://jsfiddle.net/jitheshkt/s2DJR/14/

Answer 1

Regular expressions.

For example:

s = s.replace(/color:\s*([^;]+)/, "color:" + newvalue)

Answer 2

var s = "width:20px;\nheight:25px;\ncolor:red;\nfont-family:myfontfamily";

alert( s.replace(/width:\d+/,'width:123').replace(/height:\d+/,'height:456') );