// JavaScript Document

function swapImage(obj, act){
	if(act == 1){
		var p = "/images/nav/hover/"+obj.name+".gif";
		obj.src = p;
	}
	
	if(act == 0){
		var p = "/images/nav/"+obj.name+".gif";
		obj.src = p;
	}
}

function preloadNavImages(){
	nav_image1 = new Image(); 
	nav_image1.src = "/images/nav/hover/about_aluminium.gif";
	
	nav_image2 = new Image(); 
	nav_image2.src = "/images/nav/hover/careers.gif";
	
	nav_image3 = new Image(); 
	nav_image3.src = "/images/nav/hover/community_relations.gif";
	
	nav_image4 = new Image(); 
	nav_image4.src = "/images/nav/hover/about_us.gif";
	
	nav_image5 = new Image(); 
	nav_image5.src = "/images/nav/hover/news.gif";
	
	nav_image6 = new Image(); 
	nav_image6.src = "/images/nav/hover/safety.gif";
	
	nav_image7 = new Image(); 
	nav_image7.src = "/images/nav/hover/products.gif";
	
/*	nav_image8 = new Image(); 
	nav_image8.src = "images/nav/hover/home.gif";
	
	nav_image9 = new Image(); 
	nav_image9.src = "images/en.gif";
	
	nav_image10 = new Image(); 
	nav_image10.src = "images/nav/hover/home.gif";
	
	nav_image11 = new Image(); 
	nav_image11.src = "images/nav/hover/home.gif";
	
	nav_image12 = new Image(); 
	nav_image12.src = "images/nav/hover/home.gif";*/
}
function MM_validateForm() { //v4.0
  if (document.getElementById){
    var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
    for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=document.getElementById(args[i]);
      if (val) { nm=val.id; if ((val=val.value)!="") {
        if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
          if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
        } else if (test!='R') { num = parseFloat(val);
          if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
          if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
            min=test.substring(8,p); max=test.substring(p+1);
            if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
      } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
    } if (errors) alert('The following error(s) occurred:\n'+errors);
    document.MM_returnValue = (errors == '');
} }


function trim(str) 
{
	return str.replace(/^\s*|\s*$/g,"");
}


function ValidateSearch(){
var error = "";

var strSearch = document.getElementById("strSearch").value;
		if(trim(strSearch) == "" || trim(strSearch).length < 4){
			error = "Please enter a search keyword (min. 4 characters)";
		}else{
			if (/[^a-zA-Z0-9\s$]/.test(strSearch)) {
				error = 'Invalid input\r\nPlease enter alphanumeric characters only';
				}
		}
		if(error){
			alert(error);
			return false;
		}
return true;
}



var min=11;
var max=16;
function increaseFontSize() {
   	var p = document.getElementsByTagName('p');
	var a = document.getElementsByTagName('a');
	var div = document.getElementsByTagName('div');
	var td = document.getElementsByTagName('td');	   

   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=max) {
         s += 1;
      }
     	p[i].style.fontSize = s+"px";
     	p[i].style.lineHeight = s+6+"px";
   }
   
    for(i=0;i<td.length;i++) {
      if(td[i].style.fontSize) {
         var s = parseInt(td[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=max) {
         s += 1;
      }
	  
     	td[i].style.fontSize = s+"px";
	  
   }



/*
   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=max) {
         s += 1;
      }
	  if(p[i].id != "rightContent"){
     	p[i].style.fontSize = s+"px";
	  }
   }
   
   for(i=0;i<a.length;i++) {
      if(a[i].style.fontSize) {
         var s = parseInt(a[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=max) {
         s += 1;
      }
	  
	    if(a[i].id != "rightContent"){
		a[i].style.fontSize = s+"px";
	 
	  
      //a[i].style.fontSize = s+"px"
   }
   
   for(i=0;i<div.length;i++) {
      if(div[i].style.fontSize) {
         var s = parseInt(div[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=max) {
         s += 1;
      }
      div[i].style.fontSize = s+"px";
   }
 }*/
}

function decreaseFontSize() {
   	var p = document.getElementsByTagName('p');
	var a = document.getElementsByTagName('a');
	var div = document.getElementsByTagName('div');
	var td = document.getElementsByTagName('td');	 
	
   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=min) {
         s -= 1;
      }
     	p[i].style.fontSize = s+"px";
     	p[i].style.lineHeight = s+6+"px";
		
   }
   
    for(i=0;i<td.length;i++) {
      if(td[i].style.fontSize) {
         var s = parseInt(td[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=min) {
         s -= 1;
      }
     	td[i].style.fontSize = s+"px";
   }
/*
   for(i=0;i<div.length;i++) {
      if(div[i].style.fontSize) {
         var s = parseInt(div[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=min) {
         s -= 1;
      }
      div[i].style.fontSize = s+"px"
   }   
   for(i=0;i<a.length;i++) {
      if(a[i].style.fontSize) {
         var s = parseInt(a[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=min) {
         s -= 1;
      }
	  if(a[i].id != "rightContent"){
	      a[i].style.fontSize = s+"px"
	  }
   }   
   for(i=0;i<sel.length;i++) {
      if(sel[i].style.fontSize) {
         var s = parseInt(sel[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=min) {
         s -= 1;
      }
      sel[i].style.fontSize = s+"px"
   }   
   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=min) {
         s -= 1;
      }
	  if(p[i].id != "rightContent"){
		p[i].style.fontSize = s+"px";
	  }
   }   */
}

function font(val){
	var p = document.getElementsByTagName('p');
	var a = document.getElementsByTagName('a');
	var div = document.getElementsByTagName('div');
	var sel = document.getElementsByTagName('select');	
   for(i=0;i<p.length;i++) {
      p[i].style.fontSize = val+"px"
   }
   for(i=0;i<a.length;i++) {
      a[i].style.fontSize = val+"px"
   }
   for(i=0;i<div.length;i++) {
      div[i].style.fontSize = val+"px"
   }
   for(i=0;i<sel.length;i++) {
      sel[i].style.fontSize = val+"px"
   }
}