How to set Timer in workflow

[chanikya]

Hi 

i have request like this,

if 1st - approval didn't approved with in 1-day , then goto setValue "Cancelled"--End

if approved with in 1-day , goto 2nd- approval , if 2nd approval didn't approved with in 1-day, then goto setValue  "Cancelled"--End.

if TWO approvals approved with in 1-day then goto Setvalue-" complete"---END.

So how should i use timer here...???

The Workflow is on Custom Table

[chanikya]

Not working If - Condition

answer = ifScript();

function ifScript(){
var app=new GlideRecord('sysapproval_approver');
app.addQuery('sysapproval', current.sys_id);
app.addQuery('state','requested');
app.orderByDesc('sys_created_on');
app.query();
if(app.next())
{
return 'yes';
}else
{
return 'no';
}

}