document.preloadImages = new Array;

function preloadImage(s)
{
    document.preloadImages[s] = new Image;
    document.preloadImages[s].src = s;
}
                                    

function initLoad()
{
    var navButtons = document.getElementsByTagName("a");
    for (i = 0; i < navButtons.length; i++)
    {
	    if (navButtons[i].getElementsByTagName("img").length > 0)
		{
			if (navButtons[i].getElementsByTagName("img")[0].getAttribute('srcon')) 
			{
				navButtons[i].onmouseover = function()
		                        	        {
		                    	                var gsx = this.getElementsByTagName("img");
		            	                        gsx[0].src = document.preloadImages[gsx[0].getAttribute('srcon')].src;
		    	                            }
			    navButtons[i].onmouseout = function()
		                    	           {
		                	                    var gsx = this.getElementsByTagName("img");
	    	    	                            gsx[0].src = document.preloadImages[gsx[0].getAttribute('srcoff')].src;
			                               }
	    	}                            
	    }
	}

    var preLoads = document.getElementsByTagName("img");
    for (i = 0; i < preLoads.length; i++)
    {
        if (preLoads[i].getAttribute('srcon') != '')
        {
            preloadImage(preLoads[i].getAttribute('srcon'));
            preloadImage(preLoads[i].getAttribute('srcoff'));
        }

        if (document.title.indexOf(preLoads[i].getAttribute('alt'),0) > 0 && preLoads[i].getAttribute('srcon'))
        {
            preLoads[i].src = document.preloadImages[preLoads[i].getAttribute('srcon')].src;
			preLoads[i].parentNode.onmouseout = function()
		                    	            {
		                	                    var gsx = this.getElementsByTagName("img");
	    	    	                            gsx[0].src = document.preloadImages[gsx[0].getAttribute('srcon')].src;
			                                }        
        }
                                     
    }

}


	function CheckMandatory()
	{
	invalid = 0;
         items = document.getElementsByTagName('input');
		 for (i=0;i<items.length;i++)
		 { if (items[i].getAttribute("mandatory")=="yes" && items[i].value=="") 
		     { 
			   invalid++;
			 }
	      }
		  
		  if (invalid>0) {
		  alert("Please fill in all of the fields marked with an asterisk (*) before submitting the form."); 
return false;} else {return true;}
		
	}