window.onload = initialize;

function initialize(){
	initStrengthHeaders();
}



function initStrengthHeaders() {

	var allHeaders = getElementsByClass("strengthHeader");
	
	for( i = 0; i < allHeaders.length; i++){
		allHeaders[i].onmouseover = strengthHeaderOver;
		allHeaders[i].onmouseout = strengthHeaderOut;
	}
}


function strengthHeaderOver() {
	this.style.background = 'url(../_images/glass_header_blue.gif)';
}


function strengthHeaderOut() {
	this.style.background = 'url(../_images/glass_header_black.gif)';
}



function openStrengthContent(j) {
	var allContent = getElementsByClass("strengthContent");
	
	for( i = 0; i < allContent.length; i++){
		allContent[i].style.display = 'none';
	}
	
	document.getElementById('strength' + j + 'content').style.display = 'inline-block';

}