if (document.images) {
	var mission_statementHi = new Image();
	mission_statementHi.src = "images/about_us/mission_statement_hi.gif";
	var mission_statementLo = new Image();
	mission_statementLo.src = "images/about_us/mission_statement_lo.gif";
}
	
function ImageRollOver(imgName) {
	if (document.images){
		document[imgName].src=eval(imgName+"Hi.src");
	}
}
	
function ImageRollOut(imgName) {
	if (document.images){
		document[imgName].src=eval(imgName+"Lo.src");
	}
}