function hide_show(element){
	/* Search the element RA and sets display to none if its block and reverse*/
	if(document.getElementById('RA') == null){
		// If error exists class changes to error-class
		// starts with display: block
		if(document.getElementById('RA_ERROR').style.display != 'none'){
			document.getElementById('RA_ERROR').style.display='none';
		}else{
			document.getElementById('RA_ERROR').style.display='block';
		}
	}
	else{
		// Fallback to default 
		// starts with display: none
		if(document.getElementById('RA').style.display == 'block'){
			document.getElementById('RA').style.display='none';
		}else{
			document.getElementById('RA').style.display='block';
		}
	}
}