UpviseJS : LeftPane and Tablet / Web support

If you want to target Web interface or Tablet, you msust implement a global function called leftpane() function called by the framework.
The last statement of this function implementation must be List.show("leftpane")

for example:

function main() {
    if (WEB()) {
        // This executes for Web Browser
	ist.addItemTitle("Web Home Page");
    } else {
        // This executes for phone and tablet
	List.addItemTitle("Mobile Home Page");
    }
    List.show();
}

function leftpane() {
    if (WEB()) {
        //  Web Browser
        List.addItem("Home", "main()");
        ....
    } else {
        // Mobile tablets
        List.addItem("Home", "main()");
	.....
    }
   List.show("leftpane");
}