function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function portfolio_preloadImages() {
	MM_preloadImages('images/portfoliocategory/1.jpg', 'images/portfoliocategory/2.jpg', 'images/portfoliocategory/3.jpg', 'images/portfoliocategory/4.jpg', 'images/portfoliocategory/5.jpg', 'images/portfoliocategory/6.jpg', 'images/portfoliocategory/7.jpg', 'images/portfoliocategory/8.jpg', 'images/portfoliocategory/9.jpg', 'images/portfoliocategory/10.jpg');
	document.getElementById('footer').style.top = '-2200px';
	document.getElementById('footer').style.position = 'relative';
}

if (window.attachEvent) window.attachEvent('onload',portfolio_preloadImages);
else if (window.addEventListener) window.addEventListener('load',function(){portfolio_preloadImages();},false);

function portfolio_onmouseover(elementID) {
	document.getElementById('portfolio' + elementID).style.zIndex = '3';
}

function portfolio_onmouseout() {
	document.getElementById('portfolio1').style.zIndex = '1';
	document.getElementById('portfolio2').style.zIndex = '1';
	document.getElementById('portfolio3').style.zIndex = '1';
	document.getElementById('portfolio4').style.zIndex = '1';
	document.getElementById('portfolio5').style.zIndex = '1';
	document.getElementById('portfolio6').style.zIndex = '1';
	document.getElementById('portfolio7').style.zIndex = '1';
	document.getElementById('portfolio8').style.zIndex = '1';
	document.getElementById('portfolio9').style.zIndex = '1';
	document.getElementById('portfolio10').style.zIndex = '1';
}

function nav_portfolio_onmouseover() {
	header_nav_top_onmouseout('header_nav_top_firm', 'header_nav_bottom_firm');
	header_nav_top_onmouseout('header_nav_top_contact', 'header_nav_bottom_contact');
	document.getElementById('header_nav_top_portfolio').style.backgroundColor = '#B8210C';
	document.getElementById('header_nav_top_portfolio').style.borderBottom = '1px solid #B8210C';
	document.getElementById('header_nav_top_portfolio').style.borderLeft = '1px solid #B8210C';
	document.getElementById('header_nav_top_portfolio').style.paddingLeft = '0px';
	document.getElementById('header_nav_top_portfolio').style.borderRight = '1px solid #B8210C';
	document.getElementById('header_nav_top_portfolio').style.paddingRight = '0px';
	document.getElementById('header_nav_bottom_portfolio').style.display = 'none';
}