/* Style Changing Functions ********************************************/
function changeStyleById(id,styleProp,styleValue){
	if(document.getElementById){
		var elm = document.getElementById(id);
		elm.style[styleProp] = styleValue;
	}
}

function setClassById(id,classRef){
  if(document.getElementById){
	var elm = document.getElementById(id);
	elm.className = classRef;	
  }
}

/* New Window Pop Up Function **********************************/
function winPopUp(url,name,width,height){// There is a fifth argument variable for Window Options 
	var winDimWidth = (width!=''||width!=null) ? 'width='+width : '';
	var winDimHeight =  (height!=''||height!=null) ? 'height='+height:'';
	var winDimAll = (winDimHeight !=''&&winDimWidth != '') ? ',' + winDimWidth + ',' + winDimHeight : '';
	var winOpts =(arguments[4]) ? arguments[4]  : "";
	winOpts = winOpts  + winDimAll;
	var newPopUp = window.open(url,name,winOpts);
	newPopUp.focus();
	return false;
}

/* Utility Functions ************************************************/

function addFunctionEventById(id,e,functName){
	if(document.getElementById(id)){
	  var strFunctBody = functName;
	  args="";
	  for(var i=3;i<arguments.length;i++){
		  if(i>3){args = args + ",";}
		  args = args + "'"+arguments[i]+"'";	
	  }
	  strFunctBody = strFunctBody + "("+args+");";
	  var elm = document.getElementById(id);
	  if(e == "onclick"){strFunctBody = strFunctBody + "return false;";}
	  elm[e] = new Function(strFunctBody);
	}
}

/**********************************************************************************
 Include code at begining of Page. 
  Parameters:
  
  url [string]  -> The URL of redirected page, file or document
  useQueryString [boolean] -> Will extract QueryString from incomingURL and attach it to redirected URL
  replaceHistory [boolean] -> Will use location.replace method instead of the normal loction.href
  * If no parameters are passed, then the page will be redirected to the homepage

************************************************************************************/

function redirectPage(url,useQueryString,replaceHistory){
	if(url!="" && url!=null){
		url = (useQueryString == true || useQueryString == 'true') ? url + location.search : url;
		if(replaceHistory == true || replaceHistory == 'true'){
			location.replace(url);
		}else{
			location.href =  url;
		}
	}else{
		location.href = "http://www.worldvision.org"; //Default to redirect to homepage
	}
}