if (document.images) {

m1_off = new Image(); m1_off.src = "img/11.gif"
m1_over = new Image(); m1_over.src = "img/1_.gif"

m2_off = new Image(); m2_off.src = "img/22.gif"
m2_over = new Image(); m2_over.src = "img/2_.gif"

m3_off = new Image(); m3_off.src = "img/33.gif"
m3_over = new Image(); m3_over.src = "img/3_.gif"

m4_off = new Image(); m4_off.src = "img/44.gif"
m4_over = new Image(); m4_over.src = "img/4_.gif"




}

function turn_off(ImageName) {
	if (document.images != null) {
		document[ImageName].src = eval(ImageName + "_off.src");
	}
}

function turn_over(ImageName) {
	if (document.images != null) {
		document[ImageName].src = eval(ImageName + "_over.src");
		//alert(ImageName);
	}
}