function openAWindow( pageToLoad, winName, width, height)
{
    //debugger;
    
    xposition=0; yposition=0;
    
        xposition = (screen.width - width) / 2;
        yposition = (screen.height - height) / 2;
    
	
	//0 => no
	//1 => yes
    var args = "";
    	args += "width=" + width + "," + "height=" + height + ","
		+ "location=0,"
		+ "menubar=0,"
		+ "resizable,"
		+ "scrollbars=1,"
		+ "statusbar=false,dependent,alwaysraised,"
		+ "status=false,"
		+ "titlebar=no,"
		+ "toolbar=0,"
		+ "hotkeys=0,"
		+ "screenx=" + xposition + ","  //NN Only
		+ "screeny=" + yposition + ","  //NN Only
		+ "left=" + xposition + ","     //IE Only
		+ "top=" + yposition;           //IE Only
		//fullscreen=yes, add for full screen
    	var dmcaWin = window.open(pageToLoad,winName,args );
    	dmcaWin.focus();
    //window.showModalDialog(pageToLoad,"","dialogWidth:650px;dialogHeight:500px");
}