function Dialog(control, width, height, okCallback) {
    HideDropDowns();
    $(control)
        .show()
        .dialog({
            modal: true,
            width: width,
            height: height,
            resizable: false,
            show: {
                effect: "drop",
                options: {
                    direction: "up"
                },
                speed: 300
            },
            hide: {
                effect: "drop",
                options: {
                    direction: "up"
                },
                speed: 300
            },
            close: ShowDropDowns,
            buttons: {
                "Speichern": function() {
                    ShowDropDowns();
                    okCallback();  
                    $(this).dialog("close");
                }
            }
        });
}

function DialogWithoutButtons(control, width, height) {
    HideDropDowns();
    $(control)
        .show()
        .dialog({
            modal: true,
            width: width,
            height: height,
            resizable: false,
            show: {
                effect: "drop",
                options: {
                    direction: "up"
                },
                speed: 300
            },
            hide: {
                effect: "drop",
                options: {
                    direction: "up"
                },
                speed: 300
            },
            close: ShowDropDowns
        });
}

function Message(message, redirectUrl) {
    HideDropDowns();
    $("<div title='&nbsp;'>" + message + "</div>")
        .appendTo("body")
        .dialog({
            modal: true,
            overlay: {
                opacity: 0.9,
                background: "white"
            },
            width: 770,
            height: 130,
            resizable: false,
                        show: {
                effect: "drop",
                options: {
                    direction: "up"
                },
                speed: 300
            },
            hide: {
                effect: "drop",
                options: {
                    direction: "up"
                },
                speed: 300
            },            
            close: ShowDropDowns,            
            buttons: {
                "Weiter": function() {
                    $(this).dialog("close");
                    if (redirectUrl)
                        location = redirectUrl;
                }
            }
        });
}

function ConfirmMessage(okCallback) {
    HideDropDowns();
    $("<div title='&nbsp;'>Sind Sie sicher?</div>")
        .appendTo("body")
        .dialog({
            modal: true,
            height: 115,
            resizable: false, 
            show: {
                effect: "drop",
                options: {
                    direction: "up"
                },
                speed: 300
            },
            hide: {
                effect: "drop",
                options: {
                    direction: "up"
                },
                speed: 300
            },
            close: ShowDropDowns,            
            buttons: {
                "Ja, fortfahren": function() {
                    $(this).dialog("close");
                    okCallback();               
                },
                "Nein": function() {
                    $(this).dialog("close");
                }
            }
        });
}

function DatePicker(control) {
    $(control).datepicker({
        dateFormat: "dd.mm.yy",
        yearRange: "1900:2010",
        changeFirstDay: false
    });
    
    //this is a fix for the jquery datepicker, because the proper class won't be added otherwise 
    $("#ui-datepicker-div").addClass("ui-datepicker-div");
}

function ReplaceBreaksWithCrlf(text) {
    if (!text)
        return "";
    while (text.indexOf("<br />", 0) >= 0)
        text = text.replace("<br />", "\r\n");
    return text;
}

function HideDropDowns() {
    if ($.browser.msie && $.browser.version < 7)
        $(".hide-dropdown").hide();
}

function ShowDropDowns() {
    if ($.browser.msie && $.browser.version < 7)
        $(".hide-dropdown").show();
}

function MaxLength(textarea, maxLength) {
    var divId = "___MaxLength";

    $(textarea).blur(function() {
        $("#" + divId).remove();
    });
    
    $(textarea).focus(function() {
        var left = $(textarea).offset().left;
        var top = $(textarea).offset().top;        
                
        $("<div>")
            .attr("id", divId)
            .addClass("grid-item")
		    .css({
			    position: "absolute",
			    left: left,
			    top: top,
			    width: 150,
			    zIndex: 99999
		    })
		    .hide()
		    .html($(textarea).val().length + "/" + maxLength + " Zeichen.")
		    .appendTo("body")
		    .fadeIn(300)
		    .css({
		        top: top - $("#" + divId).height()
		    });
    });

    $(textarea).keyup(function() {
        $("#" + divId)
            .html($(textarea).val().length + "/" + maxLength + " Zeichen.");
    });
    
    $(textarea).keydown(function(evnt) {
        if (evnt.keyCode == 8 || evnt.keyCode == 46 || evnt.keyCode == 37 || evnt.keyCode == 39 || evnt.keyCode == 38 || evnt.keyCode == 40) //we still allow Backspace, Del and the Cursors.
            return true;
        if ($(textarea).val().length >= maxLength)
            return false;
    });    
}

function HoverInfo(id, text) {
    $(id).hover(function() {
        var left = $(id).offset().left;
        var top = $(id).offset().top + 25;

        if (left + 360 > $(document).width())
            left = $(document).width() - 360;

        $("#___HoverInfo").remove();
        $("<div>")
            .attr("id", "___HoverInfo")
            .addClass("hover-box")
            .css({
                position: "absolute",
                left: left,
                top: top,
                width: 350,
                zIndex: 99999
            })
            .html(text)
            .hide()
            .appendTo("body")
            .fadeIn(500);
    }, function() {
        $("#___HoverInfo")
            .fadeOut(500);
    });
}