function changeImage1_1(){
    document.myimg1.src="img/fl_1_on.gif";
}
function changeImage1_2(){
    document.myimg1.src="img/fl_1.gif";
}
function changeImage2_1(){
    document.myimg2.src="img/fl_2_on.gif";
}
function changeImage2_2(){
    document.myimg2.src="img/fl_2.gif";
}
function changeImage3_1(){
    document.myimg3.src="img/fl_3_on.gif";
}
function changeImage3_2(){
    document.myimg3.src="img/fl_3.gif";
}
function changeImage4_1(){
    document.myimg4.src="img/fl_4_on.gif";
}
function changeImage4_2(){
    document.myimg4.src="img/fl_4.gif";
}
function changeImage5_1(){
    document.myimg5.src="img/fl_5_on.gif";
}
function changeImage5_2(){
    document.myimg5.src="img/fl_5.gif";
}
function changeImage6_1(){
    document.myimg6.src="img/fl_6_on.gif";
}
function changeImage6_2(){
    document.myimg6.src="img/fl_6.gif";
}
function changeImage7_1(){
    document.myimg7.src="img/fl_7_on.gif";
}
function changeImage7_2(){
    document.myimg7.src="img/fl_7.gif";
}
function changeImage8_1(){
    document.myimg8.src="img/fl_8_on.gif";
}
function changeImage8_2(){
    document.myimg8.src="img/fl_8.gif";
}
function changeImage9_1(){
    document.myimg9.src="img/fl_9_on.gif";
}
function changeImage9_2(){
    document.myimg9.src="img/fl_9.gif";
}