function BigWin(a, obj, str, sm_top, sm_left)
        {
            el=document.getElementById("con_win");
            el1=document.getElementById("showimage");
            el2=document.getElementById("strelka");
            el2.style.margin="0px 0px 0px "+str+"px";
            el1.style.display="block";
            el1.style.left="0px";
            el1.style.top="0px";
            var curtop = 0;
            var curleft = 0;
            while (obj.offsetParent)
            {
                curtop += obj.offsetTop;
                curleft += obj.offsetLeft;
                obj = obj.offsetParent;
            }
            if(sm_left==null)
            {el1.style.margin=curtop+parseInt(sm_top)+"px 0px 0px "+curleft+"px";}
            else
            {el1.style.margin=curtop+parseInt(sm_top)+"px 0px 0px "+(curleft+parseInt(sm_left))+"px";}
	        el.innerHTML=a;
        }