/* JavaScript used in all pages
    To keep web content adapt to browser size automatically.
 */


F_contentReg  = new Array;

function F_wndRegContent( id, type, preserveTop ) {
    if (! F_client.hasDOM) return;

    // Initialization: automatically register all images
    if (id == "_init") {
        if (! top.F_sizeReset) {
            if (F_client.isNN4up) {
                top.F_contentSize = new Array(top.innerWidth, top.innerHeight);
            } else if (F_client.isIE4up) {
                if (F_client.onMac)
                    top.F_contentSize = new Array(document.body.clientWidth, document.body.clientHeight);
                else
                    top.F_contentSize = new Array(top.document.body.clientWidth, top.document.body.clientHeight);
            }
        }
        var regLen = F_contentReg.length;
        for (i = 0; i < document.images.length; i++) {
            var img = document.images[i];
            F_contentReg[regLen++] = new Array("IMG", img, img.width, img.height);
        }
        return true;
    }

    var regLen = F_contentReg.length;
    var obj = document.getElementById(id);
    if (! obj) return;
    if (type == "TABLE") {
        var rows = obj.rows;
        for (j = 0; j < rows.length; j++) {
            var cells = rows[j].cells;
            for (i = 0; i < cells.length; i++) {
                var cell = cells[i];
                alert(cell.width);
                F_contentReg[regLen++] = new Array("CELL", cell, cell.width, cell.height);
            }
        }
    } else if (type == "LAYER") {
        if (preserveTop)
            F_contentReg[regLen++] = new Array("LAYER", obj, obj.style.top, obj.style.left, obj.style.width, obj.style.height, "1000");
        else
            F_contentReg[regLen++] = new Array("LAYER", obj, obj.style.top, obj.style.left, obj.style.width, obj.style.height, "0000");
    } else if (type == "OBJECT") {
        F_contentReg[regLen++] = new Array("OBJECT", obj, obj.width, obj.height);
    }
}


function F_wndUnregContent( id ) {
    // Initialization: automatically register all images
    for (i = 0; i < F_contentReg.length; i++) {
        if (F_contentReg[i][1].id == id) {
            if (i < 1) {
                var tmp1 = new Array();
            } else {
                var tmp1 = F_contentReg.slice(0, i);
            }
            if (i > F_contentReg.length - 2) {
                var tmp2 = new Array();
            } else {
                var tmp2 = F_contentReg.slice(i + 1);
            }
            F_contentReg = tmp1.concat(tmp2);
            break;
        }
    }
}


// Adapt contents to window size
function F_wndAdaptSize( wndw, wndh ) {
    // Calculate size ratio
    if (F_client.isNN4up) {
        docWidth  = window.innerWidth;
        docHeight = window.innerHeight;
    } else if (F_client.isIE4up) {
        docWidth  = document.body.clientWidth;
        docHeight = document.body.clientHeight;
    }
    if (docWidth < wndw) {
        top.F_firstInit = true;
        F_wndResetSize();
        return;
    }

    var hRatio = docWidth  / wndw;
    var vRatio = docHeight / wndh;
//  if (Math.abs(hRatio - vRatio) / hRatio > .1)
//      vRatio = hRatio * ((hRatio - vRatio > 0) ? .9 : 1.1);

    // Resize/displace all elements registered
    for (i = 0; i < F_contentReg.length; i++) {
        var entry = F_contentReg[i];
        var obj = entry[1];
        if (entry[0] == "IMG" || entry[0] == "CELL" || entry[0] == "OBJECT") {
            obj.width  = parseInt(entry[2]) * hRatio;
            obj.height = parseInt(entry[3]) * vRatio;
        } else if (entry[0] == "LAYER") {
            if (entry[6].charAt(0) == '1') {
                obj.style.top    = parseInt(entry[2]);
                obj.style.height = parseInt(entry[5]) * vRatio + parseInt(entry[2]) * (vRatio - 1);
            } else {
                obj.style.top    = parseInt(entry[2]) * vRatio;
                obj.style.height = parseInt(entry[5]) * vRatio;
            }
            obj.style.left   = parseInt(entry[3]) * hRatio;
            obj.style.width  = parseInt(entry[4]) * hRatio;
        }
    }
}