/* 
==============================
YourStudentCentre.com Basic Javascrit Functions
==============================
This Javascript cucumber was pickled by:
>> Robin Wallar at See Design
>> www.seedesign.ca | robin [at] seedesign.ca
------------------------------
Written with massive mits on while scraping ice of the screen
of my icicle that serves as a monitor. 
------------------------------

------------------------------
Feel free to use this to educate
yourself on the wonders of javascript.
If you plan on copying something directly please contact us. 
------------------------------
*/

var checkflag = "false";

function check(field) {
	if (checkflag == "false")
	{
		for (i = 0; i < field.length; i++)
		{
			field[i].checked = true;
		}
		checkflag = "true";
		return "Uncheck All"; 
	}else{
		for (i = 0; i < field.length; i++)
		{
			field[i].checked = false;
		}
		checkflag = "false";
		return "Check All";
	}
}

function confirm_do()
{
	var confirmed = confirm("Are you sure you want to do that?");
	if(confirmed)
	{
		return true;
	}else{
		return false;
	}
}

function check_form(error, get_field)
{
	if(get_field=="")
	{
		alert(error);	
		return false;
	}else{
		return true;
	}

}

/*this will get the style attributes of a css element - ussualyl a div or span */
function getStyleObject(objectId) {
    // cross-browser function to get an object's style object given its
    if(document.getElementById && document.getElementById(objectId)) {
	// W3C DOM
	return document.getElementById(objectId).style;
    } else if (document.all && document.all(objectId)) {
	// MSIE 4 DOM
	return document.all(objectId).style;
    } else if (document.layers && document.layers[objectId]) {
	// NN 4 DOM.. note: this won't find nested layers
	return document.layers[objectId];
    } else {
	return false;
    }
} // getStyleObject


function view_news(url)
{
	window.location.href = url;
}	

/* Nav Hack for IE */
function startList() 
{
	if(document.all && document.getElementById)
	{
		navRoot = document.getElementById("nav_primary");
		for (i=0; i<navRoot.childNodes.length; i++)
		{
			node = navRoot.childNodes[i];
			if (node.nodeName=="LI")
			{
				node.onmouseover=function()
				{
					this.className+=" over";
				}
				node.onmouseout=function()
				{
					this.className=this.className.replace
					(" over", "");
			 	}
			}
		}
	}
}
/* End Nav Hack for IE */

/*preload images function*/
var preloaded = new Array();
function preload_images()
{
    for (var i = 0; i < arguments.length; i++)
	{
        preloaded[i] = document.createElement('img');
        preloaded[i].setAttribute('src',arguments[i]);
    };
};

/*validate the contact form*/
function  validate_contact()
{
	if(document.contact.name.value!="")
	{
		var email_reg=/^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
		if(email_reg.test(document.contact.email.value))
		{
			if(document.contact.body_txt.value!="")
			{					
				return true;
			}else{
				alert("Please enter content");
				return false;
			}
		}else{
			alert("Please enter a real email");
			return false;
		}
	}else{
		alert("Please enter your name");
		return false;
	}			
}		

/*validate the email list subscription and send to server for processing*/
function mlist_send_signup()
{
	var email_reg=/^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	if(email_reg.test(document.mlist_signup.email.value))
	{			
		var poststr = "email=" + encodeURI(document.mlist_signup.email.value ) +
				"&mlist=" + encodeURI(document.mlist_signup.mlist_check.value);
					
		makePOSTRequest('ajax/mlist_signup.php', poststr, 'mlist');
		return true;
	}else{
		alert("Please enter a real email");
		return false;
	}
}

/*this will be used to post ajax forms on enter - making IE sit in corner */
function submit_on_enter(input)
{
    input.onkeydown = function(e)
	{
		e = e || window.event;
		if (e.keyCode == 13)
		{
			var email_reg=/^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
			if(email_reg.test(input))
			{	
				mlist_send_signup(document.getElementById('mlist_signup'))
				return false;
			}
		}	
	}
}

/*********
OVERLAY FUNCTIONS
*********/
var overlay_opac=0;
function open_overlay()
{
	style_overlay = document.getElementById('overlay').style;
	document.getElementById('overlay_admin').visibility="hidden";

	style_overlay.width="100%";
	

	this.overlay_opac += .2;
	
	if (this.overlay_opac <= .8)
	{
		style_overlay.opacity = this.overlay_opac;
		timer =	setTimeout('open_overlay()', 0);
	}else{
	}
	
}

/*File listing stuff*/
var file_field="file_list";
var file_id;
var mini_cal_ids = new Array();

function assign_file_field(input)
{
	this.file_field.value = input;	
	document.getElementById(this.file_id).innerHTML = "";
}

function file_list_close()
{
	document.getElementById(this.file_id).innerHTML = "";
}

function file_list(url, field, span)
{
	this.file_field=field;
	this.file_id = span;
	ajax(url, span);
}
/*ende file listing stuff*/



/*swap testimony content to show the full testimony*/
function testimony_swap_content()
{
	var viewer_id = document.getElementById('testimony_viewer');
	var hider_id =document.getElementById('testimony_hider');
	var viewer_link = document.getElementById('testimony_link');
	
	if(viewer_link.innerHTML == "LESS")
	{
		viewer_link.innerHTML = "MORE";
	}else{
		viewer_link.innerHTML = "LESS";
	}
		
	var viewer = viewer_id.innerHTML;
	var hider =hider_id.innerHTML;
	
	viewer_id.innerHTML = hider;
	hider_id.innerHTML = viewer;
	
}

function show_div(id)
{
	gebi(id).style.overflow = "visible";
	gebi(id).style.visibility = "visible";	
}

function hide_div(id)
{
	gebi(id).style.overflow = "hidden";
	gebi(id).style.visibility = "hidden";
}

function popup(url)
{
	 window.open(url,'name','height=220,width=320,left=100,top=100,resizable=no,scrollbars=no,toolbar=no,status=no'); 	
}