// preload level 1 menu buttons
//var btnLevel1 = new Array();
//btnLevel1 = ["","company","science-technology","therapeutic-programs","partnerships","news-events","investors"];
//for (i=0;i<btnLevel1.length;i++) { 
//	eval("A"+i+"on = new Image();"); eval("A"+i+"off = new Image();");
//	eval("A"+(i)+"on.src = \"" + sFolderLevel + "img/buttons/l1-"+btnLevel1[i]+"-r.gif\";");
//	eval("A"+(i)+"off.src = \"" + sFolderLevel + "img/buttons/l1-"+btnLevel1[i]+"-0.gif\";");
//	if (sSelectedL1 == btnLevel1[i]) {
//		eval("A"+(i)+"on.src = \"" + sFolderLevel + "img/buttons/l1-"+btnLevel1[i]+"-1.gif\";");
//		eval("A"+(i)+"off.src = \"" + sFolderLevel + "img/buttons/l1-"+btnLevel1[i]+"-1.gif\";");
//	}
//}

// image-swapping functions
function imgOn(imgName) {
  if (document.getElementById) {
	document.getElementById(imgName).src = eval(imgName + "on.src");
  }
}
 
function imgOff(imgName) {
  if (document.getElementById) {
    document.getElementById(imgName).src = eval(imgName + "off.src");
  }
}

// IE5.5 specific styles
if (navigator.userAgent.indexOf('MSIE 5.5') != -1) {
	document.write('<style>#two { left: 290px; }</style>');
}

/* centered popUp window */
function NewWindow(mypage, myname, w, h, scroll) {
var winl = (screen.width - w) / 2;
var wint = (screen.height - h) / 2;
winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable'
win = window.open(mypage, myname, winprops)
if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}

function externalLink() {
	alert("");
}

// RNA popup paging forward 

function historyNext(pageNum) { 
	if (pageNum >= 12) {
		document.write('next');
	} else { 
	document.write('<a href="rna-interference-pg' + (pageNum+1) + '.htm">next</a>');
	}
}
	
// RNA popup paging back 

function historyBack(pageNum) { 
	if (pageNum <= 1) {
		document.write('back');
	} else { 
		document.write('<a href="rna-interference-pg' + (pageNum-1) + '.htm">back</a>');
	}
}