var nav = []; 
var preloadFlag = false;
var contactMap =[]; 
var contactMapPath = [
                      "../images/ContactUs_map_brisbane.gif",
                      "../images/ContactUs_map_gCoast.gif",
                      "../images/ContactUs_map_sCoast.gif",
                      "../images/ContactUs_map_nsw.gif",
                      "../images/ContactUs_map_act.gif",
                      "../images/ContactUs_map_sa.gif",
                      "../images/ContactUs_map_wa.gif",
                      "../images/ContactUs_map_vic.gif" 
                    ];
                    
function rollImage(out, over) {
	if (document.images) {
		this.out = new Image();
		this.out.src = out;
		this.over = new Image();
		this.over.src = over;
	}
}

function myPreloadImages() {
	if (document.images) {
	    nav[100] = new rollImage("../images/circle_arrow_purple.gif", "../images/circle_arrow_black.gif");	
		nav[200] = new rollImage("../images/rhs_product-title.gif", "../images/rhs_product-title_ON.gif");
		nav[201] = new rollImage("../images/rhs_knowledge-title.gif", "../images/rhs_knowledge-title_ON.gif");
		nav[202] = new rollImage("../images/mpw_header_goButton.gif", "../images/mpw_header_goButton_ON.gif");
		nav[203] = new rollImage("../images/ContactUs_map_cityPoint.gif", "../images/ContactUs_cityPoint_on.gif");
		
		
		nav[204] = new rollImage("../images/search-button.gif", "../images/search-button_on.gif");
		nav[205] = new rollImage("../images/btn_submit.gif", "../images/btn_submit_on.gif");
		nav[206] = new rollImage("../images/btn_cancel.gif", "../images/btn_cancle_on.gif");
		nav[207] = new rollImage("../images/btn_updateSubject.gif", "../images/btn_updateSubject_on.gif");
		
		nav[208] = new rollImage("../images/mpw_adjustFontSize1.gif", "../images/mpw_adjustFontSize1_on.gif");
		nav[209] = new rollImage("../images/mpw_adjustFontSize2.gif", "../images/mpw_adjustFontSize2_on.gif");
		nav[210] = new rollImage("../images/mpw_adjustFontSize3.gif", "../images/mpw_adjustFontSize3_on.gif");
		
		
		/*contact Map*/
		for (var i=0;i<contactMapPath.length;i++){
		    contactMap[i] = new Image();
		    contactMap[i].src = contactMapPath[i];
		}		
		preloadFlag = true;		
	}
	            
}
//myPreloadImages();