/* onload routines to include in all pages */

window.onload = handleGlobalOnload;

function handleGlobalOnload(){

	checkAndPutSearchWord(document.search_form.search_term);

	preloadTopRolloverImages();

}



var preloadedImages = new Array();

function preloadTopRolloverImages(){

	var images = ['images/rollover_mono1.jpg', 'images/rollover_mono2.jpg', 'images/rollover_mono3.jpg', 'images/rollover_mono4.jpg', 'images/rollover_color1.jpg', 'images/logo_rollover_color1.jpg', 'images/logo_rollover_mono1.jpg'];

	var images_count = images.length;

	for(var i = 0; i < images_count; i++){

		preloadedImages[i] = new Image();

		preloadedImages[i].src = images[i];

	}

}



function changeInnerImageSrc(linkObj,image_path){

	var image = linkObj.getElementsByTagName('IMG')[0];

	image.src = image_path;

}



/* put a shaded 'search' text in search box, then clear it when the user types something */

function checkAndPutSearchWord(textObj){

	var value = textObj.value;

	if(value == ''){

		textObj.value = 'Search term(s)';

		textObj.style.color = '#707070';

	}

}

function clearSearchWord(textObj){

	var value = textObj.value;

	if(value == 'Search term(s)'){

		textObj.value = '';

		textObj.style.color = '#000000';

	}		

}