function equalizeColumns() { 
                var agt = navigator.userAgent.toLowerCase(); 
                var op6 = (agt.indexOf("opera/6")!=-1||agt.indexOf("opera 6")!=-1)?true:false; 
  
                var DOM = (typeof document.getElementById!="undefined" && typeof document.createElement!="undefined" && !op6)?true:false; 
                if (DOM) { 
                     equalizeColumnsGen(document.getElementById('twocolumnpagecontent'), document.getElementById('secondcolumncontent')); 
                } else if (document.all) { 
                     equalizeColumnsGen(document.all['twocolumnpagecontent'], document.all['secondcolumncontent']); 
               } 
} 
  
function equalizeColumnsGen() { 
                var i,anArray=equalizeColumnsGen.arguments,iTallest=0; 
                for (i = 0; i < anArray.length; i++) { 
                     var iHeight = anArray[i].offsetTop + anArray[i].offsetHeight; 
                     if (iHeight > iTallest) iTallest = iHeight; 
                } 
                for (i = 0; i < anArray.length; i++) anArray[i].style.height = (iTallest - anArray[i].offsetTop) + 'px';
	initRollovers();
}            

function initRollovers() {
	if (!document.getElementById) return
	
	var aPreLoad = new Array();
	var sTempSrc;
	var aImages = document.getElementsByTagName('img');

	for (var i = 0; i < aImages.length; i++) {		
		if (aImages[i].className == 'imgover') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_o'+ftype);

			aImages[i].setAttribute('hsrc', hsrc);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			aImages[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}	
			
			aImages[i].onmouseout = function() {
				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_o'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}