if ( document.images ) {

    var load = "no";
    
    //main menu-site
    image1on = new Image(); image1on.src = "but1_on.gif";
    image2on = new Image(); image2on.src = "but2_on.gif";
    image3on = new Image(); image3on.src = "but3_on.gif";
    image14on = new Image(); image14on.src = "but4_on.gif";
    image15on = new Image(); image15on.src = "but5_on.gif";
	image5on = new Image(); image5on.src = "but5_on.gif";

    image1off = new Image(); image1off.src = "but1_off.gif";
    image2off = new Image(); image2off.src = "but2_off.gif";
    image3off = new Image(); image3off.src = "but3_off.gif";
    image14off = new Image(); image14off.src ="but4_off.gif";
    image15off = new Image(); image15off.src ="but5_off.gif";
	image5off = new Image(); image5off.src = "but5_off.gif";
    
//	image21on = new Image(); image21on.src = "/i/main/n1_on.gif";
//	image22on = new Image(); image22on.src = "/i/main/n2_on.gif";
//	image23on = new Image(); image23on.src = "/i/main/n3_on.gif";
//	image24on = new Image(); image24on.src = "/i/main/n4_on.gif";
//	image25on = new Image(); image25on.src = "/i/main/n5_on.gif";
//	image26on = new Image(); image26on.src = "/i/main/n6_on.gif";
//	image27on = new Image(); image27on.src = "/i/main/n7_on.gif";
//	image28on = new Image(); image28on.src = "/i/main/n8_on.gif";
//	image29on = new Image(); image29on.src = "/i/main/n9_on.gif";
//	image210on = new Image(); image210on.src = "/i/main/n10_on.gif";
//	image211on = new Image(); image211on.src = "/i/main/n11_on.gif";
		
//	image21off = new Image(); image21off.src = "/i/main/n1_off.gif";
//	image22off = new Image(); image22off.src = "/i/main/n2_off.gif";
//	image23off = new Image(); image23off.src = "/i/main/n3_off.gif";
//	image24off = new Image(); image24off.src = "/i/main/n4_off.gif";
//	image25off = new Image(); image25off.src = "/i/main/n5_off.gif";
//	image26off = new Image(); image26off.src = "/i/main/n6_off.gif";
//	image27off = new Image(); image27off.src = "/i/main/n7_off.gif";
//	image28off = new Image(); image28off.src = "/i/main/n8_off.gif";
//	image29off = new Image(); image29off.src = "/i/main/n9_off.gif";
//	image210off = new Image(); image210off.src = "/i/main/n10_off.gif";
//	image211off = new Image(); image211off.src = "/i/main/n11_off.gif";
	
    colorlineon = new Image(); colorlineon.src = "/i/g-t.gif";
    colorlineoff = new Image(); colorlineoff.src = "/i/d-t.gif";
    load = "yes";
}

function imageOff(imgName) {
    if (load == "yes") {if (document.images) {document.images[imgName].src = eval(imgName + "off.src");}}
    }
function imageOn(imgName) {
    if (load == "yes") {if (document.images) {document.images[imgName].src = eval(imgName + "on.src");}}
    }