/*
	DOMFunctions.js
	
	Created:  2.15.07
	Creator:  M. Kircher, Mainline Media LLC
	Modified: ---
	
*/

function setColumnHeights(){
	var content= document.getElementById('content');
	var left   = document.getElementById('main-left');
	var middle = document.getElementById('main-middle');
	var right  = document.getElementById('main-right');
	
	left.style.height   = "auto";
	middle.style.height = "auto";
	right.style.height  = "auto";
	
	var tallest = content.offsetHeight;
	
	left.style.height   = tallest+"px";
	middle.style.height = tallest+"px";
	right.style.height  = tallest+"px";
}

function monitorColumnHeights(){
	if (window.addEventListener){
		window.addEventListener('resize', setColumnHeights, false);
	} else if (window.attachEvent){
		window.attachEvent('resize', setColumnHeights);
	}	
}

function initializeSponser(sponserInfoElement){
	//add close button
	var closeElement = document.createElement('div');
	closeElement.setAttribute("class", "sponser_info_close");
	closeElement.setAttribute("className", "sponser_info_close");
	
	var closeElement_link = document.createElement('a');
	closeElement_link.href="#";
	closeElement_link.title = "Close sponser info...";
	closeElement_link.setAttribute("onclick", "toggleSponserInfo(this.parentNode.parentNode); return false;");
	closeElement_link.setAttribute("class", "sponser_info_close_link");
	closeElement_link.setAttribute("className", "sponser_info_close_link");
	closeElement_link.innerHTML = " ";
	
	
	closeElement.appendChild(closeElement_link);
	sponserInfoElement.appendChild(closeElement);
	return true;
}

function setSponserInfo(imgElement){
	var parent = imgElement.parentNode;
	var sponserInfoElement = null;
	
	var divs = parent.getElementsByTagName('div');
	var init = true;
	for(var x=0; x<divs.length; x++){
		if(divs[x].getAttribute("class") == "sponser_info_close" || 
		   divs[x].getAttribute("className") == "sponser_info_close"){
			init = false;
		}
		if(divs[x].getAttribute("class") == "sponser_info" || 
		   divs[x].getAttribute("className") == "sponser_info"){
			sponserInfoElement = divs[x];	
		}
	}
	if(init){ initializeSponser(sponserInfoElement); }
	toggleSponserInfo(sponserInfoElement);
}

function toggleSponserInfo(sponserInfoElement){
	if(sponserInfoElement){
		sponserInfoElement.style.display = (sponserInfoElement.style.display == "none" || sponserInfoElement.style.display == "")? "block" : "none";
		setColumnHeights();
	}	
}