if(document.images){
	
	var on1 = new Image();on1.src="img/landscaping01.jpg";
	var on2 = new Image();on2.src="img/landscaping02.jpg";
	var on3 = new Image();on3.src="img/landscaping03.jpg";
	var on4 = new Image();on4.src="img/landscaping04.jpg";
	var off = new Image();off.src="img/landscaping01.jpg";
	
	var t1on = new Image();t1on.src="img/t_landscaping01_o.jpg";
	var t1off = new Image();t1off.src="img/t_landscaping01.jpg";
	
	var t2on = new Image();t2on.src="img/t_landscaping02_o.jpg";
	var t2off = new Image();t2off.src="img/t_landscaping02.jpg";
	
	var t3on = new Image();t3on.src="img/t_landscaping03_o.jpg";
	var t3off = new Image();t3off.src="img/t_landscaping03.jpg";
	
	var t4on = new Image();t4on.src="img/t_landscaping04_o.jpg";
	var t4off = new Image();t4off.src="img/t_landscaping04.jpg";

}
function change(name,file){
if(document.images){//object test
eval('document.images.'+name+'.src="'+file+'";');
 }
}