<FRAME name="sideFrame" src="AppMenu.jsp" noresize="yes" scrolling="no"

<a onclick="nav_swap(this.id)" class="nav" id="view_new_page" href="javascript:submitWithAction('ViewNewPage', 'view_new_page');">View New Page /a>

session.find(:xpath,"//FRAME[@src='AppMenu.jsp']/..").all(:xpath,".//A[@id='view_new_page']/..").click

public String jsGetColor(String css){

        JavascriptExecutor js = (JavascriptExecutor) driver;
        StringBuilder stringBuilder = new StringBuilder();
        stringBuilder.append("var x=$('"+css+"');");
        stringBuilder.append("return x.css('color')");
        String res= (String) js.executeScript(stringBuilder.toString());
        return res;

    }