How can i create Synchronous Processes?

Hi all,

I'm interesting to create a process (a function for example) and wait until it's finish in order to execute the second process (function). I want to achieve truly synchronous process especially for two consecutive events:

//In theory these events are not synchronous, right??
anObject1.fireEvent('eventName1'..);
anObject2.fireEvent('eventName2'..);

*Note: The following example i don't know if works, i just made it up.

function doSomethin1(){
    //blah blah
}
 
function doSomethin2(){
    //blah blah
}
 
var procs = [];
var procExecutionIndex = 0;
procs.push(doSomethin1, doSomethin2); //Stores the pointer of the functions
 
var waitReturnCode;
var flag = false;
while(true) {
    if (!flag) {
        flag = true;
        waitReturnCode = procs[procExecutionIndex]();
    } else {
        if (waitReturnCode != 'undefined') {
            if (++procExecutionIndex < procs.length) {
                flag = false;
                waitReturnCode = 'undefined';//a bit ugly hack but is just an example...
            } else {
                break;
            }
        }
    }
}

Thanks for any help.