// JavaScript Document

function doPopup(strLocation, nWidth, nHeight, strOptions, strWinName)
{
    if(strOptions==null||strOptions=="undefined")
        strOptions = "";
        
    if(strWinName==null||strWinName=="undefined")
        strWinName = "";    
        
    if(nWidth==-1)
        nWidth = screen.availWidth;
    if(nHeight==-1)
        nHeight = screen.availHeight;        
    var cWin = window.open(strLocation, strWinName, "WIDTH="+nWidth+",HEIGHT="+nHeight+","+strOptions);
    
    var x = parseInt((screen.availWidth / 2) - (nWidth / 2));
    var y = parseInt((screen.availHeight / 2) - (nHeight / 2));
    if(x<20)
        x = 0;
    if(y<20)
        y = 0;
    if (cWin != null)
    {
        cWin.moveTo(x,y);
    }        
    return cWin;
}