rowHighlight = function() {
var x = document.getElementsByTagName('tr');
for (var i=0;i<x.length;i++) 
	{
	x[i].onmouseover = function () {this.className = "over " + this.className;}
	x[i].onmouseout = function () {this.className = this.className.replace("over", ""); this.className = this.className.replace(" ", "");}
	}
var y = document.getElementsByTagName('th');
for (var ii=0;ii<y.length;ii++) 
	{
	y[ii].onmouseover = function () {if(this.className != "nohvr") this.className = "over " + this.className;}
	y[ii].onmouseout = function () {this.className = this.className.replace("over", ""); this.className = this.className.replace(" ", "");}
	}
}