var scrwidth = screen.availWidth;
if(scrwidth <= 800){directory="images/";}
if(scrwidth >= 1024){directory="images10/";}
var btnimages = new Array(14);
btnimages[0] = new Image(180, 42);
btnimages[0].src = "images/btnmenu1db.gif";
btnimages[1] = new Image(180, 42);
btnimages[1].src = "images/btnmenu1ub.gif";
btnimages[2] = new Image(180, 42);
btnimages[2].src = "images/btnmenu2db.gif";
btnimages[3] = new Image(180, 42);
btnimages[3].src = "images/btnmenu2ub.gif";
btnimages[4] = new Image(180, 42);
btnimages[4].src = "images/btnmenu3db.gif";
btnimages[5] = new Image(180, 42);
btnimages[5].src = "images/btnmenu3ub.gif";
btnimages[6] = new Image(180, 42);
btnimages[6].src = "images/btnmenu4db.gif";
btnimages[7] = new Image(180, 42);
btnimages[7].src = "images/btnmenu4ub.gif";
btnimages[8] = new Image(180, 42);
btnimages[8].src = "images/btnmenu5db.gif";
btnimages[9] = new Image(180, 42);
btnimages[9].src = "images/btnmenu5ub.gif";
btnimages[10] = new Image(180, 42);
btnimages[10].src = "images/btnmenu6db.gif";
btnimages[11] = new Image(180, 42);
btnimages[11].src = "images/btnmenu6ub.gif";
btnimages[12] = new Image(180, 42);
btnimages[12].src = "images/btnmenu7db.gif";
btnimages[13] = new Image(180, 42);
btnimages[13].src = "images/btnmenu7ub.gif";

function raiseBtn(which){
switch(which){
case 1:
document.btn1.src = btnimages[which].src;		
break;
case 3: 
document.btn2.src = btnimages[which].src;
break;
case 5: 
document.btn3.src = btnimages[which].src;
break;
case 7: 
document.btn4.src = btnimages[which].src;
break;
case 9: 
document.btn5.src = btnimages[which].src;
break;
case 11: 
document.btn6.src = btnimages[which].src;
break;
case 13: 
document.btn7.src = btnimages[which].src;
}
}

function lowerBtn(which){
switch(which){
case 0:
document.btn1.src = btnimages[which].src		
break;
case 2: 
document.btn2.src = btnimages[which].src;
break;
case 4: 
document.btn3.src = btnimages[which].src;
break;
case 6: 
document.btn4.src = btnimages[which].src;
break;
case 8: 
document.btn5.src = btnimages[which].src;
break;
case 10: 
document.btn6.src = btnimages[which].src;
break;
case 12: 
document.btn7.src = btnimages[which].src;
}
}

function showmap(){
	win = window.open("showmap.htm", "WIN", "status=no,toolbar=no,location=no,menu=no,width=400,height=400");
}