function closeAll() {

	var tabs = ['mission','whatissceettrust','requestaquote','board']
	var colours = ['black','blue','red','maroon','yellow']

	for(var c = 0; c < tabs.length; c++) {
		document.getElementById("text_" + tabs[c]).style.display = 'none'
		document.getElementById(colours[c] + "_header").style.background = 'url(images/arrow-down-' + colours[c] + '.gif) no-repeat right center'
	}
}

function showTab(whichTab, whichColour) {

closeAll();
document.getElementById("text_" + whichTab).style.display = ''
//document.getElementById(whichColour + "_header").style.background = 'url(images/arrow-up-' + whichColour + '.gif) no-repeat right center'


}