eleVisible = null;

function bewpHideShowAbstract(eleID) {
	ele = document.getElementById(eleID);
	eleLink = document.getElementById(eleID+"link");
	
	// Zeige Element
	if(ele.style.display == "none") {
		if(eleVisible != null) {
			document.getElementById(eleVisible.id+"link").firstChild.data = "Show Abstract";
			eleVisible.style.display = "none";
		}
		ele.style.display = "block";
		eleLink.firstChild.data = "Hide Abstract";
		eleVisible = ele;
	}
	// Verstecke Element
	else {
		if(ele == eleVisible) {
			eleVisible = null;
		}
		ele.style.display = "none";
		eleLink.firstChild.data = "Show Abstract";
	}
}