// JavaScript Document

function togglevisible(elem)
      {
            var obj = document.getElementById(elem);
            if(obj.style.display=="none")
            {
            obj.style.display="";
            }
            else
            {
            obj.style.display="none";
            } 
      }

function hide(eid)
{
var obj = document.getElementById(eid);
obj.style.display="none";
}

function show(eid)
{
var obj = document.getElementById(eid);
obj.style.display="";
}


function resizeit(obj, ct)
{
var obj = document.getElementById(obj);
obj.rows=obj.rows+ct;
}

function InsertContent(tid) {
if(document.getElementById(tid).style.display == "none") {
	document.getElementById(tid).style.display = "";
	}
else {
	document.getElementById(tid).style.display = "none";
	}
}





imgout=new Image(9,9);
imgin=new Image(9,9);

/////////////////BEGIN USER EDITABLE///////////////////////////////
	imgout.src="/images/plus.gif";
	imgin.src="/images/minus.gif";
///////////////END USER EDITABLE///////////////////////////////////

//this switches expand collapse icons
function filter(imagename,objectsrc){
	if (document.images){
		document.images[imagename].src=eval(objectsrc+".src");
	}
}

//show OR hide funtion depends on if element is shown or hidden
function shoh(id) { 
	
	if (document.getElementById) { // DOM3 = IE5, NS6
		if (document.getElementById(id).style.display == "none"){
			document.getElementById(id).style.display = 'block';
			filter(("img"+id),'imgin');			
		} else {
			filter(("img"+id),'imgout');
			document.getElementById(id).style.display = 'none';			
		}	
	} else { 
		if (document.layers) {	
			if (document.id.display == "none"){
				document.id.display = 'block';
				filter(("img"+id),'imgin');
			} else {
				filter(("img"+id),'imgout');	
				document.id.display = 'none';
			}
		} else {
			if (document.all.id.style.visibility == "none"){
				document.all.id.style.display = 'block';
			} else {
				filter(("img"+id),'imgout');
				document.all.id.style.display = 'none';
			}
		}
	}
}



function checkThisForm(theForm) {
    var why = "";
    why += checkEmail(theForm.regs_email.value);
    //why += checkPhone(theForm.phone.value);
   // why += checkPassword(theForm.password.value);
    //why += checkUsername(theForm.username.value);
    why += isEmpty(theForm.regs_firstname.value);
	why += isEmpty(theForm.regs_lastname.value);
    //why += isDifferent(theForm.different.value);
   // for (i=0, n=theForm.radios.length; i<n; i++) {
       // if (theForm.radios[i].checked) {
           // var checkvalue = theForm.radios[i].value;
          //  break;
      //  } 
   // }
    //why += checkRadio(checkvalue);
   // why += checkDropdown(theForm.choose.selectedIndex);
    if (why != "") {
       alert(why);
       return false;
    }
return true;
}

function checkEmail (strng) {
var error="";
if (strng == "") {
   error = "You didn't enter an email address.\n";
}

    var emailFilter=/^.+@.+\..{2,3}$/;
    if (!(emailFilter.test(strng))) { 
       error = "Please enter a valid email address.\n";
    }
    else {
//test email for illegal characters
       var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/
         if (strng.match(illegalChars)) {
          error = "The email address contains illegal characters.\n";
       }
    }
return error;    
}


// phone number - strip out delimiters and check for 10 digits

function checkPhone (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter a phone number.\n";
}

var stripped = strng.replace(/[\(\)\.\-\ ]/g, ''); //strip out acceptable non-numeric characters
    if (isNaN(parseInt(stripped))) {
       error = "The phone number contains illegal characters.";
  
    }
    if (!(stripped.length == 10)) {
	error = "The phone number is the wrong length. Make sure you included an area code.\n";
    } 
return error;
}


// password - 

function checkPassword (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter a password.\n";
}

return error;    
}    


// username - 4-10 chars, uc, lc, and underscore only.

function checkUsername (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter a username.\n";
}


    var illegalChars = /\W/; // allow letters, numbers, and underscores
    if ((strng.length < 4) || (strng.length > 10)) {
       error = "The username is the wrong length.\n";
    }
    else if (illegalChars.test(strng)) {
    error = "The username contains illegal characters.\n";
    } 
return error;
}       


// non-empty textbox

function isEmpty(strng) {
var error = "";
  if (strng.length == 0) {
     error = "The mandatory text area has not been filled in.\n"
  }
return error;	  
}

// was textbox altered

function isDifferent(strng) {
var error = ""; 
  if (strng != "Can\'t touch this!") {
     error = "You altered the inviolate text area.\n";
  }
return error;
}

// exactly one radio button is chosen

function checkRadio(checkvalue) {
var error = "";
   if (!(checkvalue)) {
       error = "Please check a radio button.\n";
    }
return error;
}

// valid selector from dropdown list

function checkDropdown(choice) {
var error = "";
    if (choice == 0) {
    error = "You didn't choose an option from the drop-down list.\n";
    }    
return error;
}    
function do_tabber(tab, name, loops)
	{
		
			for(var i = 0;i<=loops;i++)
			{
			document.getElementById("tabcontent_"+name+"_"+i).className="tabberBox_hidecontent";
				if(tab==i)
				{
				document.getElementById("article_tabber_"+name+"_"+i).className="on";
				//document.getElementById("rtabid_"+name+"_"+i).className="tabberBox_rtab_on";
				document.getElementById("tabcontent_"+name+"_"+i).className="tabberBox_showcontent";
				}
				else
				{
				document.getElementById("article_tabber_"+name+"_"+i).className="off";
				//document.getElementById("rtabid_"+name+"_"+i).className="tabberBox_rtab";
				document.getElementById("tabcontent_"+name+"_"+i).className="tabberBox_hidecontent";
				}
				
			}
	
	};