fName = [
	"images/index_btn1on.jpg",
	"images/index_btn2on.jpg",
	"images/index_btn3on.jpg",
	"images/index_btn4on.jpg",
	"images/index_btn5on.jpg",
	"images/index_btn6on.jpg",
	"images/index_btn7on.jpg",
	"images/index_btn8on.jpg",
	"images/index_btn9on.jpg",
	"images/index_btn10on.jpg",
	"images/index_btn11on.jpg",
	"images/index_contactus_btn1on.jpg"
	];

prIMG = new Array();
for (i=0; i<fName.length; i++) {
	prIMG[i] = new Image();
	prIMG[i].src = fName[i];
}