//
//		Copyright 2006 Re-Scan ltd
//		Re-Scan ltd. 
//		

function dropDownMenuExe(id,topVal) {

	if (document.getElementById("dropDownMenu" + id).style.visibility == 'visible') {
  		document.getElementById("dropDownMenu" + id).style.visibility = 'hidden';
	}else{
		// hide old ones
		for(var i=1;i<=topVal;i++){
			document.getElementById("dropDownMenu" + i).style.visibility = 'hidden';
			//opacity("dropDownMenu" + i, 1, 10, 1);
		}
		//opacity("dropDownMenu" + id, 10, 97, 500);
		document.getElementById("dropDownMenu" + id).style.visibility = 'visible';

 	}

}



function opacity(id, opacStart, opacEnd, millisec) {
    //speed for each frame
    var speed = Math.round(millisec / 100);
    var timer = 0;

    //determine the direction for the blending, if start and end are the same nothing happens
    if(opacStart > opacEnd) {
        for(i = opacStart; i >= opacEnd; i--) {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    } else if(opacStart < opacEnd) {
        for(i = opacStart; i <= opacEnd; i++)
            {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    }
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
    var object = document.getElementById(id).style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
}

function hideMenu(topVal){
	for(var i=1;i<=topVal;i++){
			document.getElementById("dropDownMenu" + i).style.visibility = 'hidden';
			//opacity("dropDownMenu" + i, 1, 10, 1);
		}
}

function showSubMenu(id){

	
	if (document.getElementById("subMenu" + id).style.visibility == 'visible') {
  		document.getElementById("subMenu" + id).style.visibility = 'hidden';
	}else{
		document.getElementById("subMenu" + id).style.visibility = 'visible';
 	}
	
	
}