How to pass date in DatePicker control of JQuery through JAVA and Selenium

Passing the date in DatePicker control of JQuery using JAVA code..

((JavascriptExecutor) driver)
                .executeScript("document.getElementById('<element_Id>').removeAttribute('readonly',0);");
WebElement fromDate = findElement("element_Id");
fromDate.clear();
fromDate.sendKeys(<DATE IN REQ FORMAT eg : 07/02/2015>);