function MM_preloadImages() { //v3.0
    var d = document;
    if (d.images) {
        if (!d.MM_p) d.MM_p = new Array();
        var i,j = d.MM_p.length,a = MM_preloadImages.arguments;
        for (i = 0; i < a.length; i++)
            if (a[i].indexOf("#") != 0) {
                d.MM_p[j] = new Image;
                d.MM_p[j++].src = a[i];
            }
    }
}

function MM_swapImgRestore() { //v3.0
    var i,x,a = document.MM_sr;
    for (i = 0; a && i < a.length && (x = a[i]) && x.oSrc; i++) x.src = x.oSrc;
}

function MM_findObj(n, d) { //v4.01
    var p,i,x;
    if (!d) d = document;
    if ((p = n.indexOf("?")) > 0 && parent.frames.length) {
        d = parent.frames[n.substring(p + 1)].document;
        n = n.substring(0, p);
    }
    if (!(x = d[n]) && d.all) x = d.all[n];
    for (i = 0; !x && i < d.forms.length; i++) x = d.forms[i][n];
    for (i = 0; !x && d.layers && i < d.layers.length; i++) x = MM_findObj(n, d.layers[i].document);
    if (!x && d.getElementById) x = d.getElementById(n);
    return x;
}

function MM_swapImage() { //v3.0
    var i,j = 0,x,a = MM_swapImage.arguments;
    document.MM_sr = new Array;
    for (i = 0; i < (a.length - 2); i += 3)
        if ((x = MM_findObj(a[i])) != null) {
            document.MM_sr[j++] = x;
            if (!x.oSrc) x.oSrc = x.src;
            x.src = a[i + 2];
        }
}

function preloader()

{
     var i = 0;
     imageObj = new Image();
     images = new Array();
     images[0]="images/home_gr.gif"
     images[1]="images/hr_gr.gif"
     images[2]="images/col_gr.gif"


     for(i=0; i<=2; i++)
     {
          imageObj.src=images[i];
     }
}



function change() {
    MM_swapImage('Image1', '', 'images/home_gr.gif', 1);
    document.getElementById("index_tab").onmouseout = null;
    document.getElementById("index_tab").onmouseover = null;
    MM_swapImage('Image2', '', 'images/hrn_ble.gif', 1);
    document.getElementById("hr_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("hr_tab").onmouseover = function () {
        MM_swapImage('Image2', '', 'images/hr_org.gif', 1);
    };
    MM_swapImage('Image3', '', 'images/col_blu.gif', 1);
    document.getElementById("colleges_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("colleges_tab").onmouseover = function () {
        MM_swapImage('Image3', '', 'images/col_org.gif', 1);
    };

}
function change1() {
    MM_swapImage('Image1', '', 'images/home_blu.gif', 1);
    document.getElementById("index_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("index_tab").onmouseover = function () {
        MM_swapImage('Image1', '', 'images/hom_org.gif', 1);
    };
    MM_swapImage('Image2', '', 'images/hr_gr.gif', 1);
    document.getElementById("hr_tab").onmouseout = null;
    document.getElementById("hr_tab").onmouseover = null;
    MM_swapImage('Image3', '', 'images/col_blu.gif', 1);
    document.getElementById("colleges_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("colleges_tab").onmouseover = function () {
        MM_swapImage('Image3', '', 'images/col_org.gif', 1);
    };


}

function change2() {
    MM_swapImage('Image1', '', 'images/home_blu.gif', 1);
    document.getElementById("index_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("index_tab").onmouseover = function () {
        MM_swapImage('Image1', '', 'images/hom_org.gif', 1);
    };
    MM_swapImage('Image2', '', 'images/hrn_ble.gif', 1);
    document.getElementById("hr_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("hr_tab").onmouseover = function () {
        MM_swapImage('Image2', '', 'images/hr_org.gif', 1);
    };
    MM_swapImage('Image3', '', 'images/col_gr.gif', 1);
    document.getElementById("colleges_tab").onmouseout = null;
    document.getElementById("colleges_tab").onmouseover = null;
}

 function java_change(typ_page) {
    MM_swapImage('Image5', '', '../images/java_grb.jpg', 1);
    document.getElementById("java_tab").onmouseout = null;
    document.getElementById("java_tab").onmouseover = null;

    if(typ_page!=null && typ_page != "project_drill")
    {
        MM_swapImage('Image6', '', '../images/c_bl.jpg', 1);
        document.getElementById("c_tab").onmouseout = function () {
            MM_swapImgRestore();
        };
        document.getElementById("c_tab").onmouseover = function () {
            MM_swapImage('Image6', '', '../images/c_gr.jpg', 1);
        };
    }

    MM_swapImage('Image4', '', '../images/c++_bl.jpg', 1);
    document.getElementById("cpp_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("cpp_tab").onmouseover = function () {
        MM_swapImage('Image4', '', '../images/c++_gr.jpg', 1);
    };

    MM_swapImage('Image7', '', '../images/net_bl.jpg', 1);
    document.getElementById("dotnet_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("dotnet_tab").onmouseover = function () {
        MM_swapImage('Image7', '', '../images/net_gr.jpg', 1);
    };

}

 function c_change(typ_page) {
    MM_swapImage('Image5', '', '../images/java_bl.jpg', 1);
    document.getElementById("java_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("java_tab").onmouseover = function () {
        MM_swapImage('Image5', '', '../images/java_gr.jpg', 1);
    };
    if(typ_page!=null && typ_page != "project_drill")
    {
        MM_swapImage('Image6', '', '../images/c_grb.jpg', 1);
        document.getElementById("c_tab").onmouseout = null;
        document.getElementById("c_tab").onmouseover = null;
    }
    MM_swapImage('Image4', '', '../images/c++_bl.jpg', 1);
    document.getElementById("cpp_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("cpp_tab").onmouseover = function () {
        MM_swapImage('Image4', '', '../images/c++_gr.jpg', 1);
    };

    MM_swapImage('Image7', '', '../images/net_bl.jpg', 1);
    document.getElementById("dotnet_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("dotnet_tab").onmouseover = function () {
        MM_swapImage('Image7', '', '../images/net_gr.jpg', 1);
    };
 }

 function cpp_change(typ_page) {
    MM_swapImage('Image5', '', '../images/java_bl.jpg', 1);
    document.getElementById("java_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("java_tab").onmouseover = function () {
        MM_swapImage('Image5', '', '../images/java_gr.jpg', 1);
    };
    if(typ_page!=null && typ_page != "project_drill")
    {
    MM_swapImage('Image6', '', '../images/c_bl.jpg', 1);
    document.getElementById("c_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("c_tab").onmouseover = function () {
        MM_swapImage('Image6', '', '../images/c_gr.jpg', 1);
    };
    }
    MM_swapImage('Image4', '', '../images/c++_grb.jpg', 1);
    document.getElementById("cpp_tab").onmouseout = null;
    document.getElementById("cpp_tab").onmouseover = null;

    MM_swapImage('Image7', '', '../images/net_bl.jpg', 1);
    document.getElementById("dotnet_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("dotnet_tab").onmouseover = function () {
        MM_swapImage('Image7', '', '../images/net_gr.jpg', 1);
    };
 }

 function net_change(typ_page) {
    MM_swapImage('Image5', '', '../images/java_bl.jpg', 1);
    document.getElementById("java_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("java_tab").onmouseover = function () {
        MM_swapImage('Image5', '', '../images/java_gr.jpg', 1);
    };
    if(typ_page!=null && typ_page != "project_drill")
    {
    MM_swapImage('Image6', '', '../images/c_bl.jpg', 1);
    document.getElementById("c_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("c_tab").onmouseover = function () {
        MM_swapImage('Image6', '', '../images/c_gr.jpg', 1);
    };
    }
    MM_swapImage('Image4', '', '../images/c++_bl.jpg', 1);
    document.getElementById("cpp_tab").onmouseout = function () {
        MM_swapImgRestore();
    };
    document.getElementById("cpp_tab").onmouseover = function () {
        MM_swapImage('Image4', '', '../images/c++_gr.jpg', 1);
    };

    MM_swapImage('Image7', '', '../images/net_grb.jpg', 1);
    document.getElementById("dotnet_tab").onmouseout = null;
    document.getElementById("dotnet_tab").onmouseover = null;
 }