function preloadImages(url,pictures){    
    if (document.images) {        
        preload_image_object = new Image();
        image_url = new Array();
        image_url = pictures.split(",");
        
        var i = 0;
        for(i=0; i<=image_url.length-1; i++){
            preload_image_object.src = url+image_url[i];
        }
    }
} 

function changeClassO(obj,name){
    obj.className=obj.className+' '+name;
}

function changeClass(obj,name){
    obj.className=obj.className.substring(0,obj.className.length-(name.length+1));
}

function changeImageOver(image,over){
	var ext=image.src.substring(image.src.length-4,image.src.length);
	var file=image.src.substring(0,image.src.length-4);
	image.src=file+over+ext;
}

function changeImage(image,over){
	var over_size=over.length;
	var ext=image.src.substring(image.src.length-4,image.src.length);
	var file=image.src.substring(0,image.src.length-(over_size+4));
	image.src=file+ext;
}

function contactFocus(field,text){
	if (field.value == text) {
        field.value = '';
    }
	field.className=field.className+' active';
}

function contactBlur(field,text){
	if (field.value == '') {
        field.value = text;
    }
	field.className=field.className.substring(0,field.className.length-7);
}

function doSearch(searchStringInputId)
{
	searchInput = document.getElementById(searchStringInputId);
	document.searchForm.s.value = searchInput.value;
	document.searchForm.submit();
}