var numCerts = 4;

var certs = new Array();
certs[0] = 'process';
certs[1] = 'competencies';
certs[2] = 'verify';
certs[3] = 'logo';

var currDiv = 'process';

function swapDiv(newDiv) {
for (i = 0; i < numCerts; i++) {
        if (newDiv == certs[i]) {
		document.getElementById(currDiv).className='invisible';
		document.getElementById(newDiv).className='visible';
		}	
		else {
		currDiv = certs[i];
		document.getElementById(currDiv).className='invisible';
		}
    }
}