function MM_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) 
    if ((obj=MM_findObj(args[i]))!=null) {
        v=args[i+2];
        if (obj.style) {
            obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; 
    }
    obj.visibility=v; 
  }
}

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function checkSearch_phoneBook(obj){
  if(obj.phoneBookSearch.value.trim() == ""){
 	 alert ('Please fill in the "Search terms"');
 	 obj.phoneBookSearch.focus();
 	 return false;
  } 	
}

//*************************************************************************************
// trim - this function deletes spaces around the string.
//*************************************************************************************
String.prototype.trim = function()
{
    // Use a regular expression to replace leading and trailing 
    // spaces with the empty string
    return this.replace(/(^\s*)|(\s*$)/g, "");
}

function initUPpage() {
//this gives the total height of the document which may exceed the size of the window
//alert('scrollHeight='+document.body.scrollHeight +'; height='+window.screen.height);
   if (document.body.scrollHeight > 450 && window.screen.height == 600){
		if (document.layers) document.layers['UPpage'].visibility = "show"
		else if (document.all) document.all['UPpage'].style.visibility = "visible"

   } 
   else if (document.body.scrollHeight > 700 && window.screen.height > 690){
		if (document.layers) document.layers['UPpage'].visibility = "show"
		else if (document.all) document.all['UPpage'].style.visibility = "visible"
   }
}