popupLaunched = false;

function launchWindow()
    {
    if(popupLaunched)
        return;
    popupLaunched = true;
    
    popupDiv = document.createElement('div');
    popupDiv.style.position = 'fixed';
    popupDiv.style.left = '200px';
    popupDiv.style.top = '200px';
    popupDiv.style.width = '600px';
    popupDiv.style.height = '620px';
    popupDiv.style.backgroundColor = '#FFFFFF';
    popupDiv.style.border = 'solid 1px #888888';
    document.body.appendChild(popupDiv);

    CloseButton = document.createElement('div');
    CloseButton.style.position = 'absolute';
    CloseButton.style.right = '0px';
    CloseButton.style.top = '3px';
    CloseButton.style.width = '20px';
    CloseButton.style.height = '14px';
    CloseButton.style.fontFamily = 'Tahoma';
    CloseButton.style.cursor = 'pointer';
	CloseButton.onclick = ClosePopup;
    CloseButton.innerHTML = 'X';
    popupDiv.appendChild(CloseButton);

    popup = document.createElement('iframe');
    popup.src = 'ProductSelfEvaluator.aspx';
    popup.setAttribute('frameborder', 'no');
    popup.setAttribute('scrolling', 'no');
    popup.frameBorder = 'no';
    popup.style.position = 'absolute';
    popup.style.top = '20px';
    popup.style.width = '600px';
    popup.style.height = '600px';
    popupDiv.appendChild(popup);
    }

function ClosePopup()
    {
    document.body.removeChild(popupDiv);
    popupLaunched = false;
    }