function centerPopUp(strURL, varPopUpWidth, varPopUpHeight){ 

    var varLeft, varTop;
    
    varLeft = (screen.width - varPopUpWidth) / 2;
    varTop = (screen.height - varPopUpHeight) / 2;
    
    myWin = window.open(strURL,"GEPopUp","location=no,dependent=no,directories=no,scrollbars=auto,resizable=no,top=" + varTop+ ",left=" + varLeft + ",width=" + varPopUpWidth + ",height=" + varPopUpHeight + ",status=no,toolbars=no,menubar=no", "");
    myWin.focus();

}

function showPopUp(strURL, varPopUpWidth, varPopUpHeight){ 
    myWin = window.open(strURL,"GEPopUp","location=no,dependent=no,directories=no,scrollbars=auto,resizable=no,width=" + varPopUpWidth + ",height=" + varPopUpHeight + ",status=no,toolbars=no,menubar=no", "");
    myWin.focus();
}

function FreePositionPopUp(strURL, varPopUpWidth, varPopUpHeight, varLeft, varTop){ 
    myWin = window.open(strURL,"GEPopUp","location=no,dependent=no,directories=no,scrollbars=auto,resizable=no,top=" + varTop+ ",left=" + varLeft + ",width=" + varPopUpWidth + ",height=" + varPopUpHeight + ",status=no,toolbars=no,menubar=no", "");
    myWin.focus();
}