var mac=navigator.userAgent.indexOf('Mac')!=-1;
function cancelClick(e){
    var forbiddenKeys = new Array("a", "u", "c", "x", "v", "j");
    if(document.all){
        if (event.ctrlKey){
            var key = window.event.keyCode;  
            for(i=0; i<forbiddenKeys.length; i++)
                {
                    //case-insensitive comparation
                    if(forbiddenKeys[i].toLowerCase() == String.fromCharCode(key).toLowerCase())
                    {
                        return false;
                    }
                }
        } else if (event.button == 2 || event.button == 3){
            return(false);
        } else if (mac&&(event.ctrlKey||event.keyCode==91)){
            return(false); 
        }
    } else {
        if (e.ctrlKey){
            var key = e.keyCode;  
    	    if (mac){
                var key=e.modifiers;
            }
        
    	    for(i=0; i<forbiddenKeys.length; i++)
                {
                    //case-insensitive comparation
                    if(forbiddenKeys[i].toLowerCase() == String.fromCharCode(key).toLowerCase())
                    {
                        return false;
                    }
            }
        } else if(e.which==3||(mac&&(e.modifiers==2||e.ctrlKey))){
            return false;
        } else if(e.which==1){
            window.captureEvents(Event.MOUSEMOVE);
            window.onmousemove=function(){return false;};
        } else if (mac && e.metaKey){
            return false;
        }
    }
}

function cancelSelect(target){
    if (typeof target.onselectstart != "undefined") {
    	target.onselectstart=function(){return false;}
    } else if (typeof target.style.MozUserSelect != "undefined") {
    	target.style.MozUserSelect="none";
    } else {
    	target.onmousedown=function(){return false;}
    }
    target.style.cursor = "default";
}




if (document.layers) 
    window.captureEvents(Event.MOUSEDOWN); 

document.onmousedown=cancelClick; 
window.onmousedown=cancelClick; 
document.onkeydown = cancelClick;


function hideThis(someIds){
	for (var i=0; i<arguments.length;i++){
		document.getElementById(arguments[i]).className="loading";
	}
}			
function showThis(someIds){
	for (var i=0; i<arguments.length;i++){
		document.getElementById(arguments[i]).className="loaded";
	}
}




var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	]
};
BrowserDetect.init();