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function tf_image() { window.open("http://www.gsmweb.nl/telfort/toestelfeed.htm","tf_image",",,,,,,,width=1100,height=850,top=0,left=0,scrollbars=1,resizable=1"); }
function va() { window.open("http://www.gsmweb.nl/telfort/vertraagde_aktivatie_popup.htm","va",",,,,,,,width=640,height=600,top=0,left=0,scrollbars=1,resizable=1"); }
function nbtf() { window.open("http://www.gsmweb.nl/telfort/nummerbehoud_popup.htm","nbtf",",,,,,,,width=640,height=675,top=0,left=0,scrollbars=1,resizable=1"); }
function fair() { window.open("http://www.gsmweb.nl/telfort/fairuse.htm","fair",",,,,,,,width=450,height=375,top=0,left=0,scrollbars=0,resizable=1"); }
function tv() { window.open("http://www.gsmweb.nl/verzekering_popup.htm","tv",",,,,,,,width=640,height=800,top=0,left=0,scrollbars=1,resizable=1"); }