function show_hide(id)
{
if (document.getElementById(id).style.display!='none')
	{
	document.getElementById(id).style.display='none'
	}
else
	{
	document.getElementById(id).style.display='block'
	}
}

function hide(id)
{
document.getElementById(id).style.display='none'
}

function rollon(button_name)
{
frank=document.getElementById(button_name);
if (frank.src.search(/.gif/)>-1) 	// if it has .gif in the src 
	{
	if (frank.src.search(/_selected.gif/) == -1)  // if it isnt already selected
		{
		frank.src=frank.src.replace(/.gif/, "_selected.gif");   // make it selected
		return true;
		}
	}
if (frank.src.search(/.jpg/)>-1)      // else if it has .jpg in the src
	{
	if (frank.src.search(/_selected.jpg/) == -1)   // if it isnt already selected
		{
		frank.src=frank.src.replace(/.jpg/, "_selected.jpg");    // make it selected
		return true;
		}
	}
return false;
}

function rolloff(button_name)
{
frank=document.getElementById(button_name);
frank.src=frank.src.replace(/_selected/, "");
}

function fillon(button_name)
{
document.getElementById(button_name).style.backgroundColor="rgb(253,227,247)";
}

function filloff(button_name)
{
document.getElementById(button_name).style.backgroundColor="white";
}

function eventTrigger (e) {
    if (! e)
        e = event;
    return e.target || e.srcElement;
}