function openWindow(url)
{
    if(window.navigator.userAgent.indexOf('MSIE') > 0){
        var h=screen.height>600?screen.height-50:screen.height;
        var w=screen.width>800?screen.width-10:screen.width;
    }
    else{
	var h=screen.height;
        var w=screen.width;
    }

    var params='height='+h+',width='+w+',toolbar=0,menubar=0,scrollbars=0,resizable=0,status=1,location=0,left=0,top=0';
    window.open(url,'mainWindow',params);
}

function sum(a,b){
    return a+b;
}

function div(a,b)
{
    if(b!=0)
        return a/b;
    
    return 0;
}

function setTheStatus(statusString)
{
	window.status=statusString;
}

function openMP(url)
{
    var params='height=100,width=200,toolbar=0,menubar=0,scrollbars=0,resizable=0,status=1,location=0,left=0,top=0';
    var execName='mpWin';
    window.open(url,execName,params);
}

function openPhoto(url)
{
    var params='height=700,width=700,toolbar=0,menubar=0,scrollbars=0,resizable=0,status=1,location=0,left=0,top=0';
    var execName='phWin';
    window.open(url,execName,params);
}