[xelawho]

I don't know anything about nodeJS, but this is the bit that shows your data in the html:

element.innerHTML = data.value;

so I guess at that point if you had made a globally-acessible array like this:

var mydata=[];

then below the innerHTML line you can push the data onto the array:

mydata.push(data.value)

or initialize a string:

var mydata="";

and then add the data to the string:

mydata+=data.value;

or if you want the var to be overwritten each time data is received (to mirror what is shown in the html)

var mydata;

and then inside socket.on:

mydata=data.value;

depends what you want to do, really