var prefix="/img_3/";
var heartImg=new Array();
heartImg[0]=new Image(); heartImg[0].src=prefix+'heart.gif';
heartImg[1]=new Image(); heartImg[1].src=prefix+'heart_ov.gif';

function chImg(pIndex, pImg) {
	
	document.getElementById('menu_img_'+pIndex).src=heartImg[pImg].src;
}