var timer, i, menuId;
var dom = document.getElementById ? true : false;
var ie4 = ((document.all) && (!dom)) ? true : false;
var ns4 = document.layers ? true : false;
var opera = navigator.userAgent.indexOf('Opera') != -1 ? true : false;
var dhtml = dom ? true : ie4 ? true : ns4 ? true : false;

function setVisibility(element,newVisibility)
{
  if (dhtml)
  {
    if (dom) document.getElementById(element).style.display = newVisibility;
    else if (ie4) document.all[element].style.display = newVisibility;
    else if (ns4) eval('document.' + element + '.display = newVisibility');
  }
}

function show(id)
{
  if (dhtml)
  {
  hideall();

    if(document.getElementById('sol' + id).style.display=='block') {
     hide(id);
     // exit();
    }
      
    setVisibility((ns4 ? 'document.' : '') + 'sol' + id,'block');
  }
}

function hide(id)
{
  if (dhtml)
  { 
    menuId = (ns4 ? 'document.' : '') + 'sol' + id;
    setVisibility(menuId,'none');
  }
}


function hideall() {
if (dhtml) {
	for (var i=1;i<6;i++) {
	
	   menuId = (ns4 ? 'document.' : '') + 'sol' + i;
	   setVisibility(menuId,'none');
	}
}
}



function externalLinks() { 
	if (!document.getElementsByTagName) return; 
	var anchors = document.getElementsByTagName("a"); 
	for (var i=0; i<anchors.length; i++) { 
		var anchor = anchors[i]; 
		if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external") anchor.target = "_blank"; 
	} 
}
window.onload = externalLinks;