function switchprod(x) {
	
	var prod = document.getElementById(x);
	var ib = document.getElementById("ib_link")
	var is = document.getElementById("is_link")
	
	if(x == 'icebox') {
		is.className = "navblockoff";
		ib.className = "navblock";
		prod.style.display = "block";
		document.getElementById("icestation").style.display = "none";
	}
	else if(x == 'icestation') {
		is.className = "navblock";
		ib.className = "navblockoff";
		document.getElementById("icebox").style.display = "none";
		prod.style.display = "block";
		
	}
}
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];
			}
		}
	}
}