function miniwin1(){
subwin=window.open("about_prasenta.html","window1","width=500,height=335,toolbar=0,location=0,directories=0,status=1,scrollbars=1,resizable=1,menubar=0");
subwin.focus();
}

function miniwin2(){
subwin=window.open("about_kotara.html","window2","width=500,height=335,toolbar=0,location=0,directories=0,status=1,scrollbars=1,resizable=1,menubar=0");
subwin.focus();
}

function miniwin3(url){
subwin=window.open(url,"window3","width=800,height=600,toolbar=1,location=0,directories=0,status=1,scrollbars=1,resizable=1,menubar=0");
subwin.focus();
}

function miniwin4(){
subwin=window.open("tyui.html","window4","width=500,height=335,toolbar=0,location=0,directories=0,status=1,scrollbars=1,resizable=1,menubar=0");
subwin.focus();
}