function win_open(win_url, width, height)
{	
   myleft = parseInt(((document.body.clientWidth)/2)-500);
   mytop = parseInt(((document.body.clientHeight)/2)-250);
   window.open(win_url, null, "width="+width+", height="+height+", location=no, menubar=no, toolbar=no, scrollbars=yes, status=no, top="+mytop+",left="+myleft+"").focus();
}

function bg_change1(id)
{
 var appName = navigator.appName;
 if(appName.indexOf('Microsoft')!=-1){document.getElementById(""+id+"").attributes[3].value = "tbl2_act";}
 document.getElementById(""+id+"").setAttribute("class", "tbl2_act");
}

function bg_change2(id)
{
 var appName = navigator.appName;
 if(appName.indexOf('Microsoft')!=-1){document.getElementById(""+id+"").attributes[3].value = "tbl2";}
 document.getElementById(""+id+"").setAttribute("class", "tbl2");
}