function pre(img)
{
msk1="thumb/general-"+img+".html";
var nw;
nw = window.open(msk1,'mak1',"toolbar=no,directories=no,resize=no,menubar=no,location=no,scrollbars=yes,width=450,height=547");
nw.focus()
}

function sewi(img)
{
msk1="thumb/sewing-"+img+".html";
var nw;
nw = window.open(msk1,'mak1',"toolbar=no,directories=no,resize=no,menubar=no,location=no,scrollbars=yes,width=450,height=547");
nw.focus()
}

function sport(img)
{
msk1="thumb/sport-"+img+".html";
var nw;
nw = window.open(msk1,'mak1',"toolbar=no,directories=no,resize=no,menubar=no,location=no,scrollbars=yes,width=675,height=547");
nw.focus()
}

function electric(img)
{
msk1="thumb/electrical-"+img+".html";
var nw;
nw = window.open(msk1,'mak1',"toolbar=no,directories=no,resize=no,menubar=no,location=no,scrollbars=yes,width=450,height=547");
nw.focus()
}