function openAlertWindow(sText) {
    
    myP1 = document.getElementById("paragkos");
    myP1.innerHTML = sText;
    
    var cover = document.getElementById("cover");
    cover.style.display = "block";

    cover.style.width = parseInt(document.body.clientWidth)+"px";
    cover.style.height = parseInt(document.body.clientHeight)+"px";

    var hidden = document.getElementById("alert");
    hidden.style.display = "block";

    hidden.style.left = parseInt(((document.documentElement.clientWidth/2) - (hidden.clientWidth/2)) + document.documentElement.scrollLeft)+"px";
    hidden.style.top = parseInt(((document.documentElement.clientHeight/2) - (hidden.clientHeight)) + document.documentElement.scrollTop)+"px";
}

function openAlertLite(sText2) {

    myP2 = document.getElementById("paraglite");
    myP2.innerHTML = sText2;

    var cover2 = document.getElementById("cover");
    cover2.style.display = "block";

    cover2.style.width = parseInt(document.body.clientWidth) + "px";
    cover2.style.height = parseInt(document.body.clientHeight) + "px";

    var hidden2 = document.getElementById("alertlite");
    hidden2.style.display = "block";

    hidden2.style.left = parseInt(((document.documentElement.clientWidth / 2) - (hidden2.clientWidth / 2)) + document.documentElement.scrollLeft) + "px";
    hidden2.style.top = parseInt(((document.documentElement.clientHeight / 2) - (hidden2.clientHeight)) + document.documentElement.scrollTop) + "px";
}