Navigating thru a Long View on the Web

Have you ever tried to page thru an exteremly long view on the web. The following allows you to easily navigate thru a view alphabetically.
$$ViewTemplateDefault
-----------------------------
Form properties: Select - Generate HTLM for all fields
-----------------------------
Add a computed text field: DBCol
Formula:
x := @DbColumn(""; ""; "(lu" + @Subset(@ViewTitle; 1) + ")"; 1);
@LowerCase(@If(@IsError(x); ""; @Implode(x)))
-----------------------------
Add a computed text field: Path
Formula:
"/" + @ReplaceSubstring(@ReplaceSubstring(@Subset(@DbName; -1); ""; "/");" "; "+")
-----------------------------
Add a computed field: ViewTitle
Formula:
@ReplaceSubstring(@Subset(@ViewTitle; 1); " "; "+")
-----------------------------
Add the following text to the top of the page. You can use images, but they take more time to load.

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W| X | Y | Z

Create Javascript Hotspots over each letter:

// letter represents the first letter you navigate to in a view
var letter = "a"
navigation(letter)

in the JSHeader :
function navigation(letter)
{var a = document.forms[0].DBCol.value.toLowerCase();
var b = a.indexOf(letter);
var vt = document.forms[0].ViewTitle.value;
var dbpath = document.forms[0].Path.value;
switch(b){
case -1:
alert("There are no entries beginning with the letter " + letter + ".");
break;
default:
location=dbpath + "/" + vt +"?OpenView&StartKey=" + letter + "&Count=1000&ExpandView";
}
}

Next, create a copy of the view you need to navigate thru. In this example, the view I'm navigating thru is called DOCUMENTS. The new view should be named (luDOCUMENTS). The first column should be sorted & categorized with the following formula: @Left(columnformulahere; 1). Delete all other columns.

This formula will return a sorted & categorized view that contains only the first letter of the entry and is used by the DBCol formula above.

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