var preloadFlag = false;
function preLoad() 
	{
	if (document.images) 
		{ 
		img1on  = new Image();img1on.src =  "/images/global/btn_home_on.gif";
		img1off = new Image();img1off.src = "/images/global/btn_home_off.gif";
		img2on  = new Image();img2on.src =  "/images/global/btn_comm_on.gif";
		img2off = new Image();img2off.src = "/images/global/btn_comm_off.gif";
		img3on  = new Image();img3on.src =  "/images/global/btn_port_r_on.gif";
		img3off = new Image();img3off.src = "/images/global/btn_port_r_off.gif";
		img4on  = new Image();img4on.src =  "/images/global/btn_port_c_on.gif";
		img4off = new Image();img4off.src = "/images/global/btn_port_c_off.gif";
		img5on  = new Image();img5on.src =  "/images/global/btn_services_on.gif";
		img5off = new Image();img5off.src = "/images/global/btn_services_off.gif";
		img6on  = new Image();img6on.src =  "/images/global/btn_about_on.gif";
		img6off = new Image();img6off.src = "/images/global/btn_about_off.gif";
		img7on  = new Image();img7on.src =  "/images/global/btn_contact_on.gif";
		img7off = new Image();img7off.src = "/images/global/btn_contact_off.gif";
		
		img10on  = new Image();img10on.src =  "/images/global/side/btn_about_on.gif";
		img10off = new Image();img10off.src = "/images/global/side/btn_about_off.gif";
		img11on  = new Image();img11on.src =  "/images/global/side/btn_news_on.gif";
		img11off = new Image();img11off.src = "/images/global/side/btn_news_off.gif";
		img12on  = new Image();img12on.src =  "/images/global/side/btn_employment_on.gif";
		img12off = new Image();img12off.src = "/images/global/side/btn_employment_off.gif";

		img13on  = new Image();img13on.src =  "/images/global/side/btn_design_on.gif";
		img13off = new Image();img13off.src = "/images/global/side/btn_design_off.gif";
		img14on  = new Image();img14on.src =  "/images/global/side/btn_construction_on.gif";
		img14off = new Image();img14off.src = "/images/global/side/btn_construction_off.gif";

		img010on  = new Image();img010on.src =  "/images/global/side/btn_indicator_on.gif";
		img010off = new Image();img010off.src = "/images/global/side/btn_indicator_off.gif"
		img011on  = new Image();img011on.src =  "/images/global/side/btn_indicator_on.gif";
		img011off = new Image();img011off.src = "/images/global/side/btn_indicator_off.gif"
		img012on  = new Image();img012on.src =  "/images/global/side/btn_indicator1_on.gif";
		img012off = new Image();img012off.src = "/images/global/side/btn_indicator1_off.gif"
		img013on  = new Image();img013on.src =  "/images/global/side/btn_indicator_on.gif";
		img013off = new Image();img013off.src = "/images/global/side/btn_indicator_off.gif"
		img014on  = new Image();img014on.src =  "/images/global/side/btn_indicator1_on.gif";
		img014off = new Image();img014off.src = "/images/global/side/btn_indicator1_off.gif"

		preloadFlag = true;
		}
	}

function change()
	{
	if (document.images && (preloadFlag == true))
		{
		for (var i=0; i<change.arguments.length; i+=2)
			{
			document[change.arguments[i]].src = eval(change.arguments[i+1] + ".src");
			}
		}
	}