occhat_ctrlenter.js

关于在线聊天的程序,类似于QQ聊天,希望大家喜欢

function ctrlEnter(e){
    var ie =navigator.appName=="Microsoft Internet Explorer" ? true:false; 
    if(ie){
        if(event.ctrlKey && window.event.keyCode==13){doSomething();}
    }else{
        if(isKeyTrigger(e,13,true)){doSomething();}
    }
}

function isKeyTrigger(e,keyCode){
    var argv = isKeyTrigger.arguments;
    var argc = isKeyTrigger.arguments.length;
    var bCtrl = false;
    if(argc > 2){
        bCtrl = argv[2];
    }
    var bAlt = false;
    if(argc > 3){
        bAlt = argv[3];
    }

    var nav4 = window.Event ? true : false;

    if(typeof e == 'undefined') {
        e = event;
    }

    if( bCtrl && 
        !((typeof e.ctrlKey != 'undefined') ? 
            e.ctrlKey : e.modifiers & Event.CONTROL_MASK > 0)){
        return false;
    }

    if( bAlt && 
        !((typeof e.altKey != 'undefined') ? 
            e.altKey : e.modifiers & Event.ALT_MASK > 0)){
        return false;
    }

    var whichCode = 0;
    if (nav4) whichCode = e.which;
    else if (e.type == "keypress" || e.type == "keydown")
        whichCode = e.keyCode;
    else whichCode = e.button;

    return (whichCode == keyCode);
}

function doSomething(){
	//alert('Ctrl+Enter being Pressed.'); 
}