/* functions related to eMRW popup windows */

/** 
 * modifies 'a' links in the document with a given class name to open in
 * either a new pop-up window, or an existing specified target window.
 * @param className CSS class name of a links to be processed
 * @param targetWindow Window object to be targeted with link URL (optional)
 */
 function popurl(className,targetWindow)
{
	var alinks = document.getElementsByTagName("a");
	var alink;
	var count = 0;
	for (var x=0; x<alinks.length; x++)
	{
	    alink = alinks[x];
		if (alink.className == className)
		{
            if(targetWindow && typeof(targetWindow) == 'object') {
                alink.onclick = function()
                {
                    targetWindow.location = this.href;
                    targetWindow.focus();
                    return false;
                }
            } else {
    			alink.onclick = function()
    			{
    				var targetName = String(this.href).split("/");
    				targetName = targetName[targetName.length-1].replace(/[^A-Za-z0-9_]/g,"_");
    				var nw = window.open(this.href, targetName, "resizable,location=0,statusbar=0,menubar=0,scrollbars=1,width=630,height=480");
    				nw.focus();
    				return false;
    			}
    		}
		}
	}
}

/**
 * adjusts width and height of current window to match the maximum dimensions
 * of any element with the given name; clips maximum re-size to available screen estate,
 * and never reduces size of window
 * @param elementName name of element which should be used for calulating the maximum
 *        dimensions
 */
function popups_adjustWindowWidth(elementName) {

    var myWidth = 0, myHeight = 0;
    if( typeof( window.innerWidth ) == 'number' ) {
        //Non-IE
        myWidth = window.innerWidth;
        myHeight = window.innerHeight;
        myBorderW = window.outerWidth - window.innerWidth + 30; // adjust for scroll-bars
        myBorderH = window.outerHeight - window.innerHeight;

    } else if( document.documentElement && document.documentElement.clientWidth ) {
        //IE 6+ in 'standards compliant mode'
        myWidth = document.documentElement.clientWidth;
        myHeight = document.documentElement.clientHeight;

        myBorderW = 50;
        myBorderH = 80;

    } else if( document.body && document.body.clientWidth ) {
        //IE 4 compatible
        myWidth = document.body.clientWidth;
        myHeight = document.body.clientHeight;

        myBorderW = 50;
        myBorderH = 80;
    }
    var elements = document.getElementsByTagName(elementName);
    var maxWidth = myWidth;
    var maxHeight = myHeight;

    for(var x=0; x <elements.length; x++) {
        if(elements[x].width > maxWidth) {
            maxWidth = elements[x].width;
        }
        if(elements[x].height > maxHeight) {
            maxHeight = elements[x].height;
        }
    }
    var resize = false;

    var newWidth = myWidth;
    if(maxWidth > myWidth) {
        resize = true;
        if((maxWidth  + myBorderW) > self.screen.width) {
            newWidth = self.screen.width;
        } else {
            newWidth = maxWidth + myBorderW;
        }
    }

    var newHeight = myHeight;
    if(maxHeight > myHeight) {
        resize = true;
        if((maxHeight + myBorderH) > self.screen.height) {
            newHeight = self.screen.height;
        } else {
            newHeight = maxHeight + myBorderH;
        }
    }

    if(resize) {
        window.resizeTo(newWidth,newHeight);
    }
}