The Memory (aka Concentration) Game - The Essential Guide to HTML5 - page 171

i = Math.floor(Math.random()*dl);

k = Math.floor(Math.random()*dl);

holderinfo = deck[i].info;

Save the info

Save the img

holderimg = deck[i].img;

deck[i].info = deck[k].info; Put k 's info into i

deck[i].img = deck[k].img; Put k 's img into i

deck[k].info = holderinfo; Set to the original

info

deck[k].img = holderimg;

Set to the original
img

}

}

function drawback() {

ctx.fillStyle = backcolor;

ctx.fillRect(this.sx,this.sy,this.swidth,this.sheight);

}

function choose(ev) {

var out;

var mx;

var my;

var pick1;

var pick2;

if ( ev.layerX || ev.layerX == 0) { Reminder: This is

the code for
handling
differences among
the three browsers