var isIE = false;
var isNetscape = false;
var ver = -1;
var browserSupported = false;

function detectBrowser()
{
    var ieHeader = navigator.appVersion;
    var netscapeHeader = navigator.userAgent.toLowerCase();
    this.major = parseInt(navigator.appVersion);

    //Detect IE5.5+
    version=0;

    if(ieHeader.indexOf("MSIE")!=-1)
    {
        temp=navigator.appVersion.split("MSIE");
        ieVersion=parseFloat(temp[1]);
        isIE = true;
        ver = ieVersion;

        if(ver >= 5.0)
        {
            browserSupported = true;
        }

    }
    else if(netscapeHeader.indexOf('mozilla')!=-1)
    {
        temp=navigator.appVersion.split("Mozilla/");
        isNetscape = true;

        if (this.major <= 4)
        {
            ver = 4.0;
        }
        else if(this.major >= 5)
        {
            ver = 6.0;
            browserSupported = true;
        }
    }

    return browserSupported;

}