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 SwitchImg(ImageName, ImageSrc){
    if(document.getElementById){
        var ImageObj=document.getElementById(ImageName);
        if(ImageObj){
            ImageObj.src=ImageSrc;
        }
    }
}

var array = new Array();
array[0] = 'a';
array[1] = 'b';
array[2] = 'c';
array[3] = 'd';

function show(variables)
{
	for(i=0;i<array.length;i++)
		{
			document.getElementById(array[i]).style.display = 'none';
			document.getElementById("img"+i).src='images/serviceleft-img'+i+'.jpg';
		}
	document.getElementById(variables).style.display = 'block';

	switch(variables) {
		case "a":
			vars=0;
			break;
		case "b":
			vars=1;
			break;
		case "c":
			vars=2;
			break;
		default:
			vars=3;
	}
	document.getElementById("img"+vars).src='images/serviceleft-img'+vars+'-over.jpg';
}

function showcase(cases) {
	hidedivs();
	document.getElementById(cases).style.display = 'block';
}
function hidedivs() {
	var divs = document.getElementsByTagName('div');
	for(i=0;i<divs.length;i++)	{
		var divid = divs[i].id.substr(0,4);
		if (divid=="case") {
			divs[i].style.display='none';
		}
	}	
}

function smallThumbPin(no){
	refreshImgs();
	var ano=no+1;
	//alert(ano)
	//document.getElementById("img"+ano).src="images/casestudies-img"+no+"-over.jpg";
	SwitchImg('img'+ano,'images/casestudies-img'+no+'-over.jpg');
}
function refreshImgs(){
	var imgs = document.images;
	for(j=0;j<imgs.length;j++) {
		var imgid = imgs[j].id.substr(0,3);
		//alert(imgid)
		if (imgid=="img") {
			var k=j-1;
			document.getElementById(imgid+j).src="images/casestudies-img"+k+".jpg";
		}
	}
}

function preLoad(){
	var imgas = document.images;
	for(s=0;s<imgas.length;s++) {
		var imgaid = imgas[s].id.substr(0,3);
		if (imgaid=="img") {
			var r=s-1;
			MM_preloadImages('images/casestudies-img'+r+'-over.jpg');
		}
	}
}