/*
 function get_http_object()
 AJAX XMLHTTP function used in all sites ajax scripts
 mReschke 2010-09-17
*/
var http_object = null;
function get_http_object() {
    if (window.ActiveXObject) {
        return new ActiveXObject("Microsoft.XMLHTTP");
    } else if (window.XMLHttpRequest) {
        return new XMLHttpRequest();
    } else {
        alert("Your browser does not support AJAX.");
        return null;
    }
}

/*
 function button_click(this item) null
 I do not use <input type='submit'> anywhere in mrcore4, I use <input type='button'>
 which does not cause a postback. I do this for misc reasons, mainly becuase when I hit
 return in a text box, I want to control what happens, defaultly the 'submit' button will be
 clicked, which I don't want.  This way, I can have multiple buttons on a page, and they
 get clicked differently depending on what textbox I hit enter on.  Example, when in the login
 page, if Im in the master search textbox and hit enter, it searches instead of posting btn_login
 If Im in the password textbox and I hit enter, it logs in, instead of searching...
 When you click a button, call this button_click(this) which sets __EVENT* hidden fields
 on the master page containing the buttons name (not ID) and value, so 'btn_save' and 'Save'
 Then on the .code.php side, instead of doing $_POST['btn_save'] I do $_POST['__EVENTTARGET'] == 'btn_save'
 Ya Dig?
 mReschke 2010-09-03
*/
function button_click(item) {
    //item is this, so onclick="button_click(this)"
    document.getElementById('__EVENTTARGET').value = item.name;
    document.getElementById('__EVENTARGUMENTS').value = item.value;
    var theForm;
    if (window.navigator.appName.toLowerCase().indexOf("netscape") > -1) {
        theForm = document.forms["masterform"];
    } else {
        theForm = document.masterform    
    }
    theForm.submit();
    //document.masterform.submit();
}
    


function do_search(txt, net_url, search_url) {
    //net_url and search_url are from php Page::get_url('net'), which do NOT have / at end
    txt = document.getElementById(txt);
    //alert(txt.value);
    if (txt.value.substring(0,1) == '>') {
        if (txt.value.substring(1,2) == 'g' && txt.value.substring(2,3) == ' ') {
            //query = '>g xxx' which is search google
            query = txt.value.substring(3);
            window.location = net_url + '/http://www.google.com/search?q=' + query;
        } else if (txt.value.substring(1,2) == 'g' && txt.value.substring(2,3) == 'o' && txt.value.substring(3,4) == ' ') {
            //query = '>go xxx' which is goto website
            query = txt.value.substring(4);
            if (query.substring(0,8) != 'https://' && query.substring(0,7) != 'http://') {
                query = 'http://' + query;
            }
            window.location = net_url + '/' + query;
        } else {
            btn.value = 'Advanced Mode';
            btn_width = 110;
        }
    } else {
        //window.location = search_url + '/' + txt.value.toLowerCase();
        window.location = search_url + '/' + txt.value;
    }
    return false;
}

/*
 function change_search_submit_text() null
 alters the master search button text based on the search textbox content
 mReschke 2010-08-27
*/
function change_search_submit_text() {
    txt = document.getElementById('master_search_text');
    btn = document.getElementById('master_search_submit');
    txt_width_css = 141; //must match master.css
    btn_width_css = 60; //must match master.css
    btn_width = btn_width_css;
    if (txt.value.substring(0,1) == '>') {
        if (txt.value.substring(1,2) == 'g' && txt.value.substring(2,3) != 'o') {
            btn.value = 'Search Google';
            btn_width = 100;
        } else if (txt.value.substring(1,2) == 'g' || txt.value.substring(2,3) == 'o') {
            btn.value = 'Goto Website';
            btn_width = 90;
        } else {
            btn.value = 'Advanced Mode';
            btn_width = 110;
        }
    } else {
        btn.value = 'Search';
    }
    txt_width = txt_width_css - (btn_width - btn_width_css);
    btn.style.width = btn_width + 'px';
    txt.style.width = txt_width + 'px';
}

/*
 function keyup_actions(e, submit_element)
 Used for onkeyup of a text box (onkeydown failed)
 If they hit the enter key (13) then click the submit_element
 If they hit ESC then clear the textbox contents...
 NOTE, onkeydown & onkeyup recognizes ESC, TAB,... while onkeypress does not
 But onkeydown kept resetting the value back to original when I hit ESC, so onkeyup works
 mReschke 2010-09-03
*/
function keyup_actions(item, e, submit_element) {
    if(navigator.userAgent.match("Gecko")){
        c=e.which;
    }else{
        c=e.keyCode;
    }
    //13 = ENTER
    //27 = ESC
    //9 = TAB
    //16 = SHIFT
    //17 = CTRL
    //18 = alt
    //alert(c);
    if (submit_element) {
        if(c==13){
            document.getElementById(submit_element).click();
            return false;
        }
    }
    if (c==27) {
        document.getElementById(item.id).value = '';
    }
    return false;    
}

function set_focus(element, selected) {
    document.getElementById(element).focus();
    if (selected)
        document.getElementById(element).select();
}

function trim(stringToTrim) {
    if (stringToTrim) {
        return stringToTrim.replace(/^\s+|\s+$/g,"");
    } else {
        return stringToTrim;
    }
}

/*
 function confirm_delete() boolean
 Generic delete confirmation script
 mReschke 2010-09-23
*/
function confirm_delete() {
    if (confirm("Are you sure you want to delete this item?")) {
        return true;
    } else {
        return false;
    }
}

/*
 function toggle_popup()
 Used to toggle the main master popup divs
 mReschke 2011-04-02
*/
function toggle_dialog(dialog_div_id) {
    fade = document.getElementById('master_dialog_fade');
    dialog = document.getElementById(dialog_div_id);
    if (fade.style.display == 'none') {
        fade.style.display = 'block';
        dialog.style.display = 'block';
    } else {
        fade.style.display = 'none';
        dialog.style.display = 'none';
    }
}

/*
 mReschke 2011-08-21
 function get_mouse_position()
 Gets the mouse X position
*/
function get_mouse_x_position(event) {
	//Example, to set a div menu_div position by the mouse use
    //menu_div.style.left = get_mouse_x_position(event) + 'px';
    //menu_div.style.top = get_mouse_y_position(event) + 'px';
	var posx = 0;
	//if (!e) var e = window.event;
    e = event || window.event;
	if (e.pageX) {
		posx = e.pageX;
		posy = e.pageY;
	} else if (e.clientX) 	{
		posx = e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
	}
    return posx
}


/*
 mReschke 2011-08-21
 function get_mouse_position()
 Gets the mouse Y position
*/
function get_mouse_y_position(event) {
	//Example, to set a div menu_div position by the mouse use
    //menu_div.style.left = get_mouse_x_position(event) + 'px';
    //menu_div.style.top = get_mouse_y_position(event) + 'px';
	var posy = 0;
	//if (!e) var e = window.event;
    e = event || window.event;
	if (e.pageY) 	{
		posy = e.pageY;
	} else if (e.clientY) 	{
		posy = e.clientY + document.body.scrollTop + document.documentElement.scrollTop;
	}
    return posy
}