function posicio (elem){
		element=document.getElementById(elem);
		
		var y=0;
		var x=0;
		
		if(element.offsetLeft){ // es opt utilitzar
			while (element.offsetParent) {
				x += element.offsetLeft;
				y += element.offsetTop;
				element = element.offsetParent;
			}
		}else{
			while (element.parent) {
				x += element.left;
				y += element.top;
				element = element.parent;
			}	
		}
	
		return {pos_x: x, pos_y: y};
	}

	function menuDesp(menu, caixa){
		var a=posicio(menu);

		if(document.getElementById(caixa).style.visibility=="hidden"){
			amagaTot();
			
			document.getElementById(caixa).style.visibility="visible";
			document.getElementById(caixa+"H").style.visibility="visible";
			
			document.getElementById(caixa).style.left=a.pos_x+"px";
			document.getElementById(caixa+"H").style.left=(a.pos_x+5)+"px";
			document.getElementById(caixa).style.top=(a.pos_y+20)+"px";
			document.getElementById(caixa+"H").style.top=(a.pos_y+25)+"px";
			
			document.getElementById(caixa+"H").style.height=document.getElementById(caixa).offsetHeight+"px";
		}else{
			document.getElementById(caixa).style.visibility="hidden";
			document.getElementById(caixa+"H").style.visibility="hidden";
		}
	}

	function amagaTot(){
		var llista= new Array("MInteracional","mImatges","mActes","mFActes");
		for (var i=0; i< llista.length; i++){
			document.getElementById(llista[i]).style.visibility="hidden";
			document.getElementById(llista[i]+"H").style.visibility="hidden";
		}
	}
	
	function amagar(){  //Amaga la publi
		document.getElementById("bloqueig").style.visibility="hidden";
		document.getElementById("cos_publi").style.visibility="hidden";
		document.getElementById("hombra_publi").style.visibility="hidden";
	}
	
	
//amagaTot();