<!-- hide javascript from old browser 
    but1o = new Image() 
    but1o.src = "../image/p1on.gif"  
    but1 = new Image() 
    but1.src = "../image/p1off.gif" 
    
    but2o = new Image() 
    but2o.src = "../image/p2on.gif"  
    but2 = new Image() 
    but2.src =  "../image/p2off.gif"
    
    but3o = new Image() 
    but3o.src =  "../image/p3on.gif"   
    but3 = new Image() 
    but3.src =  "../image/p3off.gif"

    but4o = new Image() 
    but4o.src =  "../image/p4on.gif"   
    but4 = new Image() 
    but4.src =  "../image/p4off.gif"

    but5o = new Image() 
    but5o.src =  "../image/p5on.gif" 
    but5 = new Image() 
    but5.src =  "../image/p5off.gif"

    but6o = new Image() 
    but6o.src =  "../image/p6on.gif"   
    but6 = new Image() 
    but6.src =  "../image/p6off.gif"

    but7o = new Image() 
    but7o.src =  "../image/p7on.gif"   
    but7 = new Image() 
    but7.src =  "../image/p7off.gif"

    but15o = new Image() 
    but15o.src =  "../image/p15on.gif" 
    but15 = new Image() 
    but15.src =  "../image/p15off.gif"

    but16o = new Image() 
    but16o.src =  "../image/p16on.gif"   
    but16 = new Image() 
    but16.src =  "../image/p16off.gif"

    but17o = new Image() 
    but17o.src =  "../image/p17on.gif"   
    but17 = new Image() 
    but17.src =  "../image/p17off.gif"

    but22o = new Image() 
    but22o.src =  "../image/p22on.gif"   
    but22 = new Image() 
    but22.src =  "../image/p22off.gif"


function img_over(imgName) { 
    document.images[imgName].src = eval(imgName + "o.src") 
} 
function img_recover(imgName) { 
    document.images[imgName].src = eval(imgName + ".src") 
} 
// done hiding -->