function clickIE4(){if(event.button==2){return false}}function clickNS4(A){if(document.layers||document.getElementById&&!document.all){if(A.which==2||A.which==3){return false}}}if(document.layers){document.captureEvents(Event.MOUSEDOWN);document.onmousedown=clickNS4}else{if(document.all&&!document.getElementById){document.onmousedown=clickIE4}}document.oncontextmenu=new Function("return false");