/* 坐标模式 */
function drawLine(obj) {
    var areaObj = obj;
    var str = areaObj.coords;
    var arr = str.split(",");
    var xArr = new Array(arr.length / 2);
    var yArr = new Array(arr.length / 2);
    var x = 0, y = 0;
    var max = 1, min = 2;
    for (var t = 0; t < arr.length; t = t + 2) {
        //alert("x == "+arr[t]);
        xArr[x++] = parseInt(arr[t]);
    }
    for (var t = 1; t < arr.length; t = t + 2) {
        //alert("y == "+arr[t]);
        yArr[y++] = parseInt(arr[t]);
    }
    var x1 = find(xArr, min);
    //alert("x min == "+x1);
    var x2 = find(xArr, max);
    //alert("x max == "+x2);
    var y1 = find(yArr, min);
    //alert("y min == "+y1);
    var y2 = find(yArr, max);
    //alert("y max == "+y2);

    var mapObj = obj.parentElement;
    if (typeof mapObj == "object") {
        //alert(mapObj.name);

        var imgs = document.all.tags("img");
        //alert(imgs.length);
        if (imgs != null) {
            for (var i = 0; i < imgs.length; i++) {
                var imgobj = imgs.item(i);
                //alert(imgobj.src);
                var mapname = imgobj.useMap;
                //alert(mapname);
                if (typeof mapname == "string" && mapname.toLowerCase() == ("#" + mapObj.name).toLowerCase()) {
                    //alert(mapname);
                    var imgleft = 0;
                    var imgtop = 0;


                    var imgparent = imgobj.parentElement;
                    while (typeof imgparent == "object" && imgparent.tagName.toUpperCase() != "BODY") {
                        imgleft += imgparent.offsetLeft - imgparent.style.borderLeft;
                        imgtop += imgparent.offsetTop - imgparent.style.borderTop;
                        imgparent = imgparent.parentElement;
                    }

                    imgleft = imgleft - 5;
                    imgtop = imgtop - 5;
                    //alert("left1 == "+imgleft);
                    //alert("top1 == "+imgtop);

                    MouseOverMap(x1, y1, x2, y2, imgleft, imgtop);
                }
            }
        }


    }
}

function find(arr, type) {
    var tmp = arr[0];
    if (type == 1) {
        for (var loop = 0; loop < arr.length; loop++)
            if (arr[loop] > tmp)
            tmp = arr[loop];
        return tmp;
    }
    else if (type == 2) {

        for (var loop = 0; loop < arr.length; loop++)
            if (arr[loop] < tmp)
            tmp = arr[loop];
        return tmp;
    }

}

function MouseOverMap(x1, y1, x2, y2, imgleft, imgtop) {
    var divElm = document.getElementById("leveldiv");
    var Left = 0 + x1;
    var Top = 0 + y1;
    var Right = parseInt(x2 - x1);
    var bottom = parseInt(y2 - y1);
    divElm.style.border = "solid 2px #FF0000";
    divElm.style.left = Left + imgleft;
    divElm.style.top = Top + imgtop;
    divElm.style.width = Right;
    divElm.style.height = bottom;
    divElm.style.cursor = "pointer";
}

function MouseOutMap() {
    var divElm = document.getElementById("leveldiv");
    divElm.style.border = "";
}

function clickmap(obj) {
    //window.open(obj.href,"newwin","toolbar=no,resizable=no,scrollbars=yes,dependent=no,width=700,height=500");	
    obj.target = "_blank";
}