function activesearch(){
	// Feb 21, 2007 - Rommil Santiago - rommil.santiago@concordia.ca
	// Activates the search options	
	var search_option_list = document.getElementById('search_option_list').getElementsByTagName('li');
	for (var i = 0; i < search_option_list.length; i++){
		search_option_list[i].getElementsByTagName('a')[0].onclick = function(){
			document.getElementById('search_selected').setAttribute('name',this.id);
			document.getElementById('search_option_list').className = this.id;
		};
		search_option_list[i].getElementsByTagName('a')[0].href = '#searchoption';

	}
	// Javascript is active - so allow javascript version of Custom Google Search
	
	if (document.getElementById("javascript_enabled")){
		var js_on = document.getElementById("javascript_enabled");
		js_on.setAttribute('value',true);
	}	
}

function queryclick(){
	var search_toplevel_query = document.getElementById('search_toplevel_query');
	if (search_toplevel_query.value == '')
		search_toplevel_query.value = 'Enter your Query here';
	search_toplevel_query.onclick = function(){
		this.value='';		
		this.onclick = function(){return false;};
		}
	}
	
function queryclick_media(){
	if (document.getElementById('expertsearch_query')){
		var expertsearch_query = document.getElementById('expertsearch_query');
	
		if (expertsearch_query.value == '')
			expertsearch_query.value = 'Enter a Phrase or Keyword';
		expertsearch_query.onclick = function(){
			this.value='';		
			this.onclick = function(){return false;};
			}
		}
	}
	
function breakawaynav_arrows(){	
	if (document.getElementById('breakawaynav')){
		var bodyclasses = document.body.className.split(' ');
		for (var i = 1; i < bodyclasses.length; i++){
				if (document.getElementById(bodyclasses[i])){
					var target = document.getElementById(bodyclasses[i]).getElementsByTagName("a")[0];
					target.className = "list_header_link";
					var last_target = target;
				}
			}
		}
		if (last_target){
			if (last_target.parentNode.getElementsByTagName("ul").length == 0)
				last_target.className="list_header_link active_with_no_arrow";
			else
				last_target.className="list_header_link active_with_arrow";
			}			
	}	
	
function alternateRows(){

	if (tables = document.getElementsByTagName("table")){
		for (var counter = 0; counter < tables.length; counter ++){
			var tableclass = tables[counter].className.split(' ');
			for (var j = 0; j < tableclass.length; j++){
				if (tableclass[j] == 'zebra'){
							var rows = document.getElementsByTagName("tr");
				for (i = 0; i < rows.length; i++){
						if (i % 2 == 1){
							rows[i].className = "lowlight";
						}else{
							rows[i].className = "highlight";	
						}
						// Make things clickable here
			
						if (rows_href = rows[i].firstChild.firstChild){
							rows[i].onclick = function(){
								window.open(this.firstChild.firstChild.getAttribute("href"),"_self");
					
							};
						}
						
					}//for		
				}
			}//for
				
		} // tables for
	}//if
}//function


// validate fields
function Validator(frmname)
{
  this.formobj=document.forms[frmname];
	if(!this.formobj)
	{
	  alert("BUG: couldnot get Form object "+frmname);
		return;
	}
	if(this.formobj.onsubmit)
	{
	 this.formobj.old_onsubmit = this.formobj.onsubmit;
	 this.formobj.onsubmit=null;
	}
	else
	{
	 this.formobj.old_onsubmit = null;
	}
	this.formobj.onsubmit=form_submit_handler;
	this.addValidation = add_validation;
	this.setAddnlValidationFunction=set_addnl_vfunction;
	this.clearAllValidations = clear_all_validations;
}
function set_addnl_vfunction(functionname)
{
  this.formobj.addnlvalidation = functionname;
}
function clear_all_validations()
{
	for(var itr=0;itr < this.formobj.elements.length;itr++)
	{
		this.formobj.elements[itr].validationset = null;
	}
}
function form_submit_handler()
{
	for(var itr=0;itr < this.elements.length;itr++)
	{
		if(this.elements[itr].validationset &&
	   !this.elements[itr].validationset.validate())
		{
		  return false;
		}
	}
	if(this.addnlvalidation)
	{
	  str =" var ret = "+this.addnlvalidation+"()";
	  eval(str);
    if(!ret) return ret;
	}
	return true;
}
function add_validation(itemname,descriptor,errstr)
{
  if(!this.formobj)
	{
	  alert("BUG: the form object is not set properly");
		return;
	}//if
	var itemobj = this.formobj[itemname];
  if(!itemobj)
	{
	  alert("BUG: Couldnot get the input object named: "+itemname);
		return;
	}
	if(!itemobj.validationset)
	{
	  itemobj.validationset = new ValidationSet(itemobj);
	}
  itemobj.validationset.add(descriptor,errstr);
}
function ValidationDesc(inputitem,desc,error)
{
  this.desc=desc;
	this.error=error;
	this.itemobj = inputitem;
	this.validate=vdesc_validate;
}
function vdesc_validate()
{
 if(!V2validateData(this.desc,this.itemobj,this.error))
 {
    this.itemobj.focus();
		return false;
 }
 return true;
}
function ValidationSet(inputitem)
{
    this.vSet=new Array();
	this.add= add_validationdesc;
	this.validate= vset_validate;
	this.itemobj = inputitem;
}
function add_validationdesc(desc,error)
{
  this.vSet[this.vSet.length]= 
	  new ValidationDesc(this.itemobj,desc,error);
}
function vset_validate()
{
   for(var itr=0;itr<this.vSet.length;itr++)
	 {
	   if(!this.vSet[itr].validate())
		 {
		   return false;
		 }
	 }
	 return true;
}
function validateEmailv2(email)
{
// a very simple email validation checking. 
// you can add more complex email checking if it helps 
    if(email.length <= 0)
	{
	  return true;
	}
    var splitted = email.match("^(.+)@(.+)$");
    if(splitted == null) return false;
    if(splitted[1] != null )
    {
      var regexp_user=/^\"?[\w-_\.]*\"?$/;
      if(splitted[1].match(regexp_user) == null) return false;
    }
    if(splitted[2] != null)
    {
      var regexp_domain=/^[\w-\.]*\.[A-Za-z]{2,4}$/;
      if(splitted[2].match(regexp_domain) == null) 
      {
	    var regexp_ip =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
	    if(splitted[2].match(regexp_ip) == null) return false;
      }// if
      return true;
    }
return false;
}
function V2validateData(strValidateStr,objValue,strError) 
{ 
    var epos = strValidateStr.search("="); 
    var  command  = ""; 
    var  cmdvalue = ""; 
    if(epos >= 0) 
    { 
     command  = strValidateStr.substring(0,epos); 
     cmdvalue = strValidateStr.substr(epos+1); 
    } 
    else 
    { 
     command = strValidateStr; 
    } 
    switch(command) 
    { 
        case "req": 
        case "required": 
         { 
           if(eval(objValue.value.length) == 0) 
           { 
              if(!strError || strError.length ==0) 
              { 
                strError = objValue.name + " : Required Field"; 
              }//if 
              alert(strError); 
              return false; 
           }//if 
           break;             
         }//case required 
        case "maxlength": 
        case "maxlen": 
          { 
             if(eval(objValue.value.length) >  eval(cmdvalue)) 
             { 
               if(!strError || strError.length ==0) 
               { 
                 strError = objValue.name + " : "+cmdvalue+" characters maximum "; 
               }//if 
               alert(strError + "\n[Current length = " + objValue.value.length + " ]"); 
               return false; 
             }//if 
             break; 
          }//case maxlen 
        case "minlength": 
        case "minlen": 
           { 
             if(eval(objValue.value.length) <  eval(cmdvalue)) 
             { 
               if(!strError || strError.length ==0) 
               { 
                 strError = objValue.name + " : " + cmdvalue + " characters minimum  "; 
               }//if               
               alert(strError + "\n[Current length = " + objValue.value.length + " ]"); 
               return false;                 
             }//if 
             break; 
            }//case minlen 
        case "alnum": 
        case "alphanumeric": 
           { 
              var charpos = objValue.value.search("[^A-Za-z0-9]"); 
              if(objValue.value.length > 0 &&  charpos >= 0) 
              { 
               if(!strError || strError.length ==0) 
                { 
                  strError = objValue.name+": Only alpha-numeric characters allowed "; 
                }//if 
                alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
                return false; 
              }//if 
              break; 
           }//case alphanumeric 
        case "num": 
        case "numeric": 
           { 
              var charpos = objValue.value.search("[^0-9]"); 
              if(objValue.value.length > 0 &&  charpos >= 0) 
              { 
                if(!strError || strError.length ==0) 
                { 
                  strError = objValue.name+": Only digits allowed "; 
                }//if               
                alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
                return false; 
              }//if 
              break;               
           }//numeric 
        case "alphabetic": 
        case "alpha": 
           { 
              var charpos = objValue.value.search("[^A-Za-z]"); 
              if(objValue.value.length > 0 &&  charpos >= 0) 
              { 
                  if(!strError || strError.length ==0) 
                { 
                  strError = objValue.name+": Only alphabetic characters allowed "; 
                }//if                             
                alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
                return false; 
              }//if 
              break; 
           }//alpha 
		case "alnumhyphen":
			{
              var charpos = objValue.value.search("[^A-Za-z0-9\-_]"); 
              if(objValue.value.length > 0 &&  charpos >= 0) 
              { 
                  if(!strError || strError.length ==0) 
                { 
                  strError = objValue.name+": characters allowed are A-Z,a-z,0-9,- and _"; 
                }//if                             
                alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
                return false; 
              }//if 			
			break;
			}
        case "email": 
          { 
               if(!validateEmailv2(objValue.value)) 
               { 
                 if(!strError || strError.length ==0) 
                 { 
                    strError = objValue.name+": Enter a valid Email address "; 
                 }//if                                               
                 alert(strError); 
                 return false; 
               }//if 
           break; 
          }//case email 
        case "lt": 
        case "lessthan": 
         { 
            if(isNaN(objValue.value)) 
            { 
              alert(objValue.name+": Should be a number "); 
              return false; 
            }//if 
            if(eval(objValue.value) >=  eval(cmdvalue)) 
            { 
              if(!strError || strError.length ==0) 
              { 
                strError = objValue.name + " : value should be less than "+ cmdvalue; 
              }//if               
              alert(strError); 
              return false;                 
             }//if             
            break; 
         }//case lessthan 
        case "gt": 
        case "greaterthan": 
         { 
            if(isNaN(objValue.value)) 
            { 
              alert(objValue.name+": Should be a number "); 
              return false; 
            }//if 
             if(eval(objValue.value) <=  eval(cmdvalue)) 
             { 
               if(!strError || strError.length ==0) 
               { 
                 strError = objValue.name + " : value should be greater than "+ cmdvalue; 
               }//if               
               alert(strError); 
               return false;                 
             }//if             
            break; 
         }//case greaterthan 
        case "regexp": 
         { 
		 	if(objValue.value.length > 0)
			{
	            if(!objValue.value.match(cmdvalue)) 
	            { 
	              if(!strError || strError.length ==0) 
	              { 
	                strError = objValue.name+": Invalid characters found "; 
	              }//if                                                               
	              alert(strError); 
	              return false;                   
	            }//if 
			}
           break; 
         }//case regexp 
        case "dontselect": 
         { 
            if(objValue.selectedIndex == null) 
            { 
              alert("BUG: dontselect command for non-select Item"); 
              return false; 
            } 
            if(objValue.selectedIndex == eval(cmdvalue)) 
            { 
             if(!strError || strError.length ==0) 
              { 
              strError = objValue.name+": Please Select one option "; 
              }//if                                                               
              alert(strError); 
              return false;                                   
             } 
             break; 
         }//case dontselect 
    }//switch 
    return true; 
}
function validate_EFL(){
	if (validate_speakers = document.getElementById("etanform")){
		var frmvalidator  = new Validator("etanform");
		frmvalidator.addValidation("email","req","Please enter your E-Mail Address");		
		
		frmvalidator.addValidation("firstname","req","Please enter your First Name");
		frmvalidator.addValidation("lastname","req","Please enter your Last Name");
		frmvalidator.addValidation("GradInfo","req","Please enter your Degree");
		frmvalidator.addValidation("Address","req","Please enter your Address");
		frmvalidator.addValidation("City","req","Please enter your City");
		frmvalidator.addValidation("Province","req","Please enter your Province");
		frmvalidator.addValidation("Code","req","Please enter your Postal Code");
		frmvalidator.addValidation("Country","req","Please enter your Country");
		frmvalidator.addValidation("Phone","req","Please enter your Phone Number");

	}
}

function replaceShareThis(){
	var span = document.getElementsByTagName("span");
	var links = document.getElementsByTagName("a");
	var i;
	var k;

	//for (i = 0; i < span.length; i++){
//		if (span[i].className == "stbuttontext")
//			span[i].innerHTML = "Share This";
//	}
	
	for (k = 0; k < links.length; k++){
		if (links[k].className == "stbutton stico_default"){
			links[k].innerHTML = '<span class="stbuttontext">Share This</span>';
			links[k].className = "";
		}
	}
	
// Now replace the email link
	if (document.getElementById("emaillink") && document.getElementById("sharethis_0")){
		$("#emaillink").replaceWith($("#sharethis_0"));
	}

}