source: branches/rsr.v5.1.1/web/punbb/style/imports/minmax.js @ 10

// minmax.js - written by Andrew Clover <and@doxdesk.com>
// Adapted for PunBB by Rickard Andersson and Paul Sullivan

/*@cc_on
@if (@_win32 && @_jscript_version>4)

var minmax_elements;

function minmax_bind(el) {
        var em, ms;
        var st= el.style, cs= el.currentStyle;

        if (minmax_elements==window.undefined) {
                if (!document.body || !document.body.currentStyle) return;
                minmax_elements= new Array();
                window.attachEvent('onresize', minmax_delayout);
        }

        if (cs['max-width'])
                st['maxWidth']= cs['max-width'];

        ms= cs['maxWidth'];
        if (ms && ms!='auto' && ms!='none' && ms!='0' && ms!='') {
                st.minmaxWidth= cs.width;
                minmax_elements[minmax_elements.length]= el;
                minmax_delayout();
        }
}

var minmax_delaying= false;
function minmax_delayout() {
        if (minmax_delaying) return;
        minmax_delaying= true;
        window.setTimeout(minmax_layout, 0);
}

function minmax_stopdelaying() {
        minmax_delaying= false;
}

function minmax_layout() {
        window.setTimeout(minmax_stopdelaying, 100);
        var i, el, st, cs, optimal, inrange;
        for (i= minmax_elements.length; i-->0;) {
                el= minmax_elements[i]; st= el.style; cs= el.currentStyle;

                st.width= st.minmaxWidth; optimal= el.offsetWidth;
                inrange= true;
                if (inrange && cs.minWidth && cs.minWidth!='0' && cs.minWidth!='auto' && cs.minWidth!='') {
                        st.width= cs.minWidth;
                        inrange= (el.offsetWidth<optimal);
                }
                if (inrange && cs.maxWidth && cs.maxWidth!='none' && cs.maxWidth!='auto' && cs.maxWidth!='') {
                        st.width= cs.maxWidth;
                        inrange= (el.offsetWidth>optimal);
                }
                if (inrange) st.width= st.minmaxWidth;
        }
}

var minmax_SCANDELAY= 500;

function minmax_scan() {
        var el;
        for (var i= 0; i<document.all.length; i++) {
                el= document.all[i];
                if (!el.minmax_bound) {
                        el.minmax_bound= true;
                        minmax_bind(el);
                }
        }
}

var minmax_scanner;
function minmax_stop() {
        window.clearInterval(minmax_scanner);
        minmax_scan();
}

minmax_scan();
minmax_scanner= window.setInterval(minmax_scan, minmax_SCANDELAY);
window.attachEvent('onload', minmax_stop);

@end @*/