if (document.images) {

			
		home = new Image();
				home.src = "images/nav_home_01.jpg";
			
				home_on = new Image();
				home_on.src = "images/nav_home_02.jpg";  
				
				//---
				
				corporate = new Image();
				corporate.src = "images/nav_corporate_01.jpg";
			
				corporate_on = new Image();
				corporate_on.src = "images/nav_corporate_02.jpg";  
				
				//---
				
				operations = new Image();
				operations.src = "images/nav_operations_01.jpg";
			
				operations_on = new Image();
				operations_on.src = "images/nav_operations_02.jpg";   
				
				//---
				
				products = new Image();
				products.src = "images/nav_products_01.jpg";
			
				products_on = new Image();
				products_on.src = "images/nav_products_02.jpg";  
				
				
				//---
				
				management = new Image();
				management.src = "images/nav_management_01.jpg";
			
				management_on = new Image();
				management_on.src = "images/nav_management_02.jpg";  
				
				//---
				
				safety = new Image();
				safety.src = "images/nav_safety_01.jpg";
			
				safety_on = new Image();
				safety_on.src = "images/nav_safety_02.jpg";  
				
				//---
				
				careers = new Image();
				careers.src = "images/nav_careers_01.jpg";
			
				careers_on = new Image();
				careers_on.src = "images/nav_careers_02.jpg";  
				
				//---
				
				contact = new Image();
				contact.src = "images/nav_contact_01.jpg";
			
				contact_on = new Image();
				contact_on.src = "images/nav_contact_02.jpg";  

				
				//---
				
				// subNAV - operations
				
				//---
				
				ironmaking = new Image();
				ironmaking.src = "images/subNav_ironmaking_01.jpg";
			
				ironmaking_on = new Image();
				ironmaking_on.src = "images/subNav_ironmaking_02.jpg";
				
				//---
				
				steelMaking = new Image();
				steelMaking.src = "images/subNav_steelMaking_01.jpg";
			
				steelMaking_on = new Image();
				steelMaking_on.src = "images/subNav_steelMaking_02.jpg"; 
				
				//---
				
				bloom = new Image();
				bloom.src = "images/subNav_bloom_01.jpg";
			
				bloom_on = new Image();
				bloom_on.src = "images/subNav_bloom_02.jpg"; 
				
				//---
				
				hotStrip = new Image();
				hotStrip.src = "images/subNav_hotStrip_01.jpg";
			
				hotStrip_on = new Image();
				hotStrip_on.src = "images/subNav_hotStrip_02.jpg"; 
				
				//---
				
				pickling = new Image();
				pickling.src = "images/subNav_pickling_01.jpg";
			
				pickling_on = new Image();
				pickling_on.src = "images/subNav_pickling_02.jpg"; 
			
				//---
				
				coldRolling = new Image();
				coldRolling.src = "images/subNav_coldRolling_01.jpg";
			
				coldRolling_on = new Image();
				coldRolling_on.src = "images/subNav_coldRolling_02.jpg";  
				
				//---
				
				coating = new Image();
				coating.src = "images/subNav_coating_01.jpg";
			
				coating_on = new Image();
				coating_on.src = "images/subNav_coating_02.jpg";  
				
				
				
				//---
				
				// subNAV - Products
				
				//---
				
				automotive = new Image();
				automotive.src = "images/subNav_automotive_01.jpg";
			
				automotive_on = new Image();
				automotive_on.src = "images/subNav_automotive_02.jpg";
				
				//---
				
				construction = new Image();
				construction.src = "images/subNav_construction_01.jpg";
			
				construction_on = new Image();
				construction_on.src = "images/subNav_construction_02.jpg";
				
				//---
				
				infastructure = new Image();
				infastructure.src = "images/subNav_infastructure_01.jpg";
			
				infastructure_on = new Image();
				infastructure_on.src = "images/subNav_infastructure_02.jpg";
				
				//---
				
				manufacturing = new Image();
				manufacturing.src = "images/subNav_manufacturing_01.jpg";
			
				manufacturing_on = new Image();
				manufacturing_on.src = "images/subNav_manufacturing_02.jpg";
				
				//---
				
				msds = new Image();
				msds.src = "images/subNav_msds_01.jpg";
			
				msds_on = new Image();
				msds_on.src = "images/subNav_msds_02.jpg";
				
				//---
				
				certifications = new Image();
				certifications.src = "images/subNav_certifications_01.jpg";
			
				certifications_on = new Image();
				certifications_on.src = "images/subNav_certifications_02.jpg";
				
				//---
				
				prodInfo = new Image();
				prodInfo.src = "images/subNav_ps_01.jpg";
			
				prodInfo_on = new Image();
				prodInfo_on.src = "images/subNav_ps_02.jpg";
				
				
				}



var viewStudio = null;

function popup(url){

	var str = centerWindow(480,320);

	viewStudio = window.open(url, "viewStudio",
"location=no,menubar=no,resizable=yes,scrollbars=yes," + str);
	viewStudio.focus();

}


function centerWindow(width,height) {

	if(window.screen){

		if(screen.availHeight-30 <= height){

			height = screen.availHeight - 30;

		}

		if(screen.availWidth-10 <= width){

			width = screen.availWidth - 10;

		}

	}

	var str = "height=" + height + ",innerHeight=" + (height+30);
	str += ",width=" + width + ",innerWidth=" + width;

	if (window.screen) {

		var ah = screen.availHeight - 30;
		var aw = screen.availWidth - 10;

		var xc = (aw - width) / 2;
		var yc = (ah - height) / 2;

    	str += ",left=" + xc + ",screenX=" + xc;
    	str += ",top=" + yc + ",screenY=" + yc;
  	}

  	return str;

}






// NAV
// Function to 'activate' images.
function imgOn(imgName) {
	
	if (document.images) {
	
		document[imgName].src = eval(imgName + "_on.src");
		
	}
	
}


// NAV
// Function to 'deactivate' images.
function imgOff(imgName) {

	if (document.images) {
	
		document[imgName].src = eval(imgName + ".src");
		
	}
	
}