Code 1 function addLoadEvent(func) 2 { 3 var oldonload = window.onload; 4 if (typeof window.onload != 'function') 5 { 6 window.onload = func; 7 } 8 else 9 { 10 window.onload = function()11 { 12 oldonload();13 func();14 }15 }16