window.onload = function(){
	domTableEnhance();
}
function domTableEnhance()
{
	if(!document.createTextNode){return;}
	var tableClass='enhancedtable';
	var colourClass='row1';
	var alltables,bodies,i,j,k,addClass,trs,c,a;
	alltables=document.getElementsByTagName('table');
	for (k=0;k<alltables.length;k++)
	{
		if(!alltables[k].className.match(tableClass)){continue;}
		bodies=alltables[k].getElementsByTagName('tbody');
		for (i=0;i<bodies.length;i++)
		{
			trs=bodies[i].getElementsByTagName('tr')
			for (j=0;j<trs.length;j++)
			{
				if(trs[j].getElementsByTagName('td').length>0)
				{
					addClass=j%2==0?'':' '+colourClass;//:'';
					trs[j].className=trs[j].className+addClass;
				}
			}
		}
	}		
}

function show(e,d){
	document.getElementById(e).style.display=d;
}

function validateLogin(){
	e=document.forms[0].elements;
	if (e.username.value == ''){
		alert ('Please enter a username.');
		return false;
	}
	if (e.password.value == ''){
		alert ('Please enter a password.');
		return false;
	}
}