function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImage() {

    if(changeImage.arguments[0] != lastLink) {

        var path = '';

	    if (document.images && (preloadFlag == true)) {
    	
		    for (var i=0; i<changeImage.arguments.length; i+=2) {
    		    path = basePath + changeImage.arguments[i+1];    		
			    document.getElementById(changeImage.arguments[i]).src = path;
		    }
	    }
    }
    	    
}

function changeActive(elmnt) {
    if(elmnt != lastLink) {
        var path = '';
        if (document.images && (preloadFlag == true)) {
        
            path = basePath + 'images/Tabs/' + lastLink + '.gif';
            document.getElementById(lastLink).src = path;
            
            
            path = basePath + 'images/Tabs/' + elmnt + '_Active.gif';        
            document.getElementById(elmnt).src = path;

        }
        lastLink = elmnt;        
    }
}

//FUNCTION TO SET THE STARTING TAB OF A PAGE
function setStartTab(elmnt) {

    if(elmnt != lastLink) { 
        var path = '';
        var tabLast = document.getElementById(lastLink);
        var tabNew = document.getElementById(elmnt);
        
        if (document.images && (preloadFlag == true)) {
        
            path = basePath + 'images/Tabs/' + lastLink + '.gif';
            tabLast.src = path;
            tabLast.style.height = 43;
            
            
            path = basePath + 'images/Tabs/' + elmnt + '_Active.gif';        
            tabNew.src = path;
            tabNew.style.height = 55;

        }
        
        lastLink = elmnt;
    }        
}

var lastLink = 'Link_Home';
var preloadFlag = false;
//var basePath = "http://localhost/pres";
var basePath = "http://www.cowetaschools.org/pres/";

function init(strActive) {

	if (document.images) {
	    
		Link_Home_over = newImage(basePath + "images/Link_Home-over.gif");
		Link_Counselor_over = newImage(basePath + "images/Link_Counselor-over.gif");
		Link_Staff_over = newImage(basePath + "images/Link_Staff-over.gif");
		Link_Staff_Link_Classroom_over = newImage(basePath + "images/Link_Staff-Link_Classroom_o.gif");
		Link_Classroom_over = newImage(basePath + "images/Link_Classroom-over.gif");
		Link_Media_over = newImage(basePath + "images/Link_Media-over.gif");
		Content_Link_Media_click = newImage(basePath + "images/Content-Link_Media_click.gif");
		
		preloadFlag = true;
		
		//CALL FUNCTION TO SET THE ACTIVE TAB FOR A PAGE
		setStartTab(strActive)		
		
	}
}