function maxArray( tagArr ) {
// this function calculates the maximum value in the associative array
var max = 0;
for(var i in tagArr){
if (tagArr[i] > max) {
max = tagArr[i];
}
}
//alert(max);
return max;
}
function minArray( tagArr, maximum ) {
// this function calculates the minimum value in the associative array
var min = maximum;
var count = 0;
for(var i in tagArr){
if (! isNaN(tagArr[i])) {
if (tagArr[i] < min) {
min = tagArr[i];
//alert(min);
}
}
count++;
}
return min;
}
function drawTagCloud(vtagMap, maxStyle) {
// this function draws the tag cloud using the associative javascript array generated by the Notes view
// calculate the maximum entries in the cloud. if not found, no tags are found
var maxEntries = maxArray(vtagMap);
if (maxEntries==0) {
document.write('No tags found');
alert('No tags found');
}
// calculate the minimum entries in the cloud
var minEntries = minArray(vtagMap, maxEntries);
// calculate the range
var range = maxEntries - minEntries;
if (range <= 0) {
range = 1;
}
// loop through the tag map to draw each tag.
for(var tag in vtagMap){
if (! isNaN(vtagMap[tag])) {
//alert(tag);
drawTag(tag, vtagMap[tag], minEntries, maxEntries, maxStyle);
//alert(vtagMap[tag]);
}
}
}
function drawTag(tag, count, min, max, maxStyle) {
// alert(tag + " = " + count);
// this function renders a tag line. first determine
// the size tag to use for this tag count
var sizeTag = Math.round((((maxStyle-1)/(max-min))*count) +(1*max-maxStyle*min)/(max-min));
// now write the link to the page
//alert('' + tag + ' ');
//document.write('' + tag + ' ');
document.write('' + tag + ' ');
}